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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 66851. |
ind anoMaint pesitive prime such hat |
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Answer» (a)^[6/3]*b^[-4/3] = a^x*b^[-2y]Base are same power will be equal Therefore, x = 6/3 = 2 - 2y = - 4/3 y = 2/3 x = 2, y = 2/3 |
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| 66852. |
VOLLEWhat is the measure of the angle x in the figure bel-35259anmnh helo v indicates the number of girls ar |
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Answer» As, shown in figure 35+x+25= 180 ( linear pair) x = 180-60x= 120 |
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| 66853. |
2si—39~tan? A — tan’ B =s S o LT e |
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| 66854. |
0) 2x2-7x +3 0 |
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| 66855. |
Sr-43' + 8-07x +6y-9-0(i) |
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| 66856. |
Two Items A& B are sold at a profit of 10% & 15% respectively. If the amount of profit received is thesame, then the cost price of A & B may be |
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| 66857. |
4. Santosh purchased a watch at 20% discount on its marked price but sold it at the marked price. Findthe profit percent of Santosh on this transaction. |
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Answer» Let P be the marked price, then the cost to santosh was (0.8)P, which represents a 20% discount. When he sold the watch, his profit was P - .8P = 0.2 P The percent gain = (Profit/Cost)* 100 = (.2p/.8P)*100 = 25% If the marked price is $100, he spends $80. He sells it for $100, so he makes $20 on his $80 investment, and $20 is 25% of $80, so this answer makes sense. |
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| 66858. |
सच urs — |v um%v 395 Vi |
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| 66859. |
onesilodiscriminant (b) nature of roots and (c) root using binomial fof the quadratic equation 2r 2v2 x1 0.) |
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Answer» please like my answer if you find it useful |
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| 66860. |
6x-5y-16=07x-13y+10=0 |
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| 66861. |
17. Find the remainder when the polynomial p ()-12y-13y-idedby 3y-2 |
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| 66862. |
\begin{array} { l } { \text { Evaluate without using trigonometric tables: } } \\ { \frac { 3 \cos 55 ^ { \circ } } { 7 \sin 35 ^ { \circ } } - \frac { 4 \left( \cos 70 ^ { \circ } \csc 20 ^ { \circ } \right) } { 7 \left( \tan 5 ^ { \circ } \tan 25 ^ { \circ } \tan 45 ^ { \circ } \tan 65 ^ { \circ } \tan 85 ^ { \circ } \right) } } \end{array} |
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| 66863. |
Evaluate without using trigonometric tables:3 cos 55°7 sin 35°7 (tan5° tan 25° tan 45 tan65° tan859)4 (cos70° cosec 20°) |
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| 66864. |
\frac \operatorname cos 70 ^ \circ \operatorname sin 20 ^ \circ %2B \frac \operatorname cos 55 ^ \circ \cdot \operatorname cosec 35 ^ \circ \operatorname tan 5 ^ \circ \cdot \operatorname tan 25 ^ \circ \cdot \operatorname tan 65 ^ \circ \cdot \operatorname tan 85 ^ \circ = 2 |
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Answer» Like if you find it useful |
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| 66865. |
\frac \operatorname cos 70 ^ \circ \operatorname sin 20 ^ \circ %2B \frac \operatorname cos 55 ^ \circ \operatorname tan 5 ^ \circ \cdot \operatorname tan 25 ^ \circ \cdot \operatorname tan 65 ^ \circ \cdot \operatorname tan 85 ^ \circ = 2 |
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| 66866. |
x 3) Expand the binomial |
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Answer» your ans is correct . thank you so much |
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| 66867. |
e the greatest number of 9 digits by the greatest nurnber of 3 digroduct of two numbers is 1 27 008.One of them is 882. Findhe product of the least number and the greatest number of thed with the digits 9, 3 and 5.the dividend when the divisor 241, quotient 135 and wbooks contain 1 395 and 2 232 pages respectively. The boochapter of the first book has 93 pages and that of the secondy more chapters are there in one book than the other?cklace has 3 strings of pearls. Each string has 100 pearls. Tcontaining 120 pearls. How many packets of pearls w22 such necklaces? |
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Answer» please clarify the question divide the greatest number of 9 digit by the greatest number of 3 digit |
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| 66868. |
E PRODUC |
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| 66869. |
(vii) 13x + 1 ly = 70;1 1x + 13y74 |
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| 66870. |
4(cos 70° cosec20”) _(tan 5° tan 25" tan 45" tan 65° tan 85°)- OR’ |
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| 66871. |
Q: -What is National Income Accounting? |
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Answer» National income accountingis a bookkeeping system that a government uses to measure the level of the country's economic activity in a given time period please like if you find it useful |
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| 66872. |
7 25203(¢} Evaluate: PSR Oko ‘tan5°.tan 25°.tan 45°. tan 65°.tan 85° |
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| 66873. |
tan 73193. sin 5째 tan 22째 sec 60째 tan 68째 sec 852 |
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| 66874. |
An aeroplane flying horizontally 1 km abovethe ground is observed at an elevation of 60°.After 10 seconds the elevation is observed tobe 30° then the uniform speed per hour of theaeroplane is |
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| 66875. |
cos 70sin 20cos 55 cosec 35tan 5 tan 25 tan 45 tan 65 tan 85 |
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| 66876. |
\operatorname { tan } 5 \operatorname { tan } 25 ^ { \circ } \operatorname { tan } 30 ^ { \circ } \operatorname { tan } 65 ^ { \circ } \operatorname { tan } 85 ^ { \circ } = \frac { 1 } { \sqrt { 3 } } |
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Answer» Tan 5 = tan(90-85) = cot85Tan 25 = Tan(90-65) = Cot65 Tan5 Tan25 Tan30 Tan 65 Tan85⇒ Cot85 Cot 65 Tan30 Tan65 Tan85⇒ Tan 30 = 1/√3 (Since Cot85*Tan85 = 1 and Cot65*Tan65 = 1) |
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| 66877. |
44. T食an11, 12, х, 13, y, 18, 19莉耶지 13矶(A) x + y = 1 8(C) x + y = 21(B)x-y=18(D) x-y=21 |
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| 66878. |
13W O SRS I सका: ) heus a2 मकर कर्यीन धर| bhis pRM MR R eSe D Epy 2 WG[ e W hIB S Sh M B dnge P Mk 9T B4N |
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Answer» Given AB is the tower. P and Q are the points at distance of 4m and 9m respectively. From fig, PB = 4m, QB = 9m. Let angle of elevation from P be α and angle of elevation from Q be β. Given that α and β are supplementary. Thus, α + β = 90 In triangle ABP, tan α = AB/BP – (i) In triangle ABQ, tan β = AB/BQ tan (90 – α) = AB/BQ (Since, α + β = 90) cot α = AB/BQ 1/tan α = AB/BQ So, tan α = BQ/AB – (ii) From (i) and (ii) AB/BP = BQ/AB AB^2 = BQ x BP AB^2 = 4 x 9 AB^2 = 36 Therefore, AB = 6. Hence, height of tower is 6m. |
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| 66879. |
igits of a number "Xy" is such thatthefisdigit "x" is double in value than secondese digits are 12. What is the value of number? |
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| 66880. |
1.Greatest binomial coefficient in the expansion of (1+x)x e (0, 1), is equal to |
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| 66881. |
OF TERMS& PARTICULAR TERM0.The number of terms in the expansion of(1 + x)^21 . IS)20 2) 21 3)22 4)24 |
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| 66882. |
11. Prove that the coefficient of.x" in the expansion of (1+x), is twice the coefficient21 -1of x" in the expansion of (1x)-1. |
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| 66883. |
Calculate following determinants using minor expansion method:\left| \begin{array}{rrr}{1} & {7} & {3} \\ {7} & {6} & {0} \\ {-5} & {3} & {4}\end{array}\right| |
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Answer» Yeah I completed my homework 🙂 |
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| 66884. |
the distance Betweeil icm3. Find the altitude of a trapezium, the sum of thelengths of whose bases is 6.5 cm and whose area is26 cm2.sofa trapezium |
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Answer» please like my answer if you find it useful |
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| 66885. |
sqrt(-cos(40)^2 %2B 1)/sin(40) |
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Answer» sin^2A+cos^2A=11-cos^2A=sin^2Ahence√1/1=1 |
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| 66886. |
\frac \tan 85 ^ \circ - \tan 40 ^ \circ 1 %2B \tan 85 ^ \circ \tan 40 ^ \circ = 1 |
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Answer» tan(85°-40°)=tan45°=1 using identity tan(A-B)=(tanA - tanB)/(1+tanAtanB) |
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| 66887. |
Find the equation of the line which cuts off an intercept 7 on y-axisand has the slope 3.1. |
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Answer» An equation of a line is:y = mx+b Where:m is the slope, andb is the y-intercept in the equation y=mx+b.Put m = 3, b = 7 Equation of line isy = 3x + 7 |
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| 66888. |
Write any five examples of angles that you have observed arround.Example : The angle formed when a scissor is opened. |
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Answer» 1 angle b/w the door and the wall2 angle b/w the corners of a room3 the angle b/w the table and the ground4 the angle b/w the two books in a bag5 the angle b/w the tyres and the spokes of a bike |
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| 66889. |
25. Which is the smallest number to be added to the denominator of 12/5 toget a proper fraction ? |
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Answer» in proper fraction denominator is larger than numerator, so the smallest no. is 8 as 8+5 = 13 so 13 > 12. |
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| 66890. |
EXERCISE 8.3Which is greater?(a) 0.3 or 0.4 (b) 0.07 or 0.02(e) 1.23 or 1.2 ( 0.099 or 0.19d) 3.3 or 3.300 G) 5.64 or 5.603Make five more examples and find the g8.5 Usi(i)Write 2 rupees 5 paise50 naise |
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Answer» 0.40.071.230.19both are equal5.64 |
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| 66891. |
Convert decimal fraction of07 to proper fraction0.95 |
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| 66892. |
Exerciuollowing as proper fraction, improper fraction or mixed tractionClassi1.Classify the followin(a) &(b) 65(c) 23(11 12 13() 19b of the following improper fractions into mixed(h) 5181Convert each of the(1) 26wn-(b) 11 |
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Answer» 1. proper fraction2.improper fraction 3. mixed fraction 4. improper fraction5.proper fraction6. mixed fraction7.improper fraction 8.proper fraction 9.improper fraction10.improper fraction |
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| 66893. |
¥दे 2दी A / 11526 lifle] कीच B5-X 20 2 0T नि ८ कट |
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Answer» |3x 7|=10| 2 4| 12x-14=1012x=24x=2 |
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| 66894. |
ese questions mentally(a) How many forties are there in four hundred(b) What is two thirds of ninety nine? |
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Answer» (a) To answer this question, you need to divide 400 by 40. 400 / 40 = 10 There are 10 forties in 400. |
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| 66895. |
3. Using a suitable identity, determine the product: X |
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Answer» As(a+b)^2= a^2+b^2+2ab(x^2+9/16+2x*3/4) |
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| 66896. |
४ , ही . 3 R S B s e L e अनल्कपवनकका:g 2 W o ¢My 0T X L'T IR. Lok किन03 Sl 1% ue' =g R .) "88224 |
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| 66897. |
(1) Evaluate the following determinants, by the process of expansion21 0(a) 7 2 5(b) 1 3 -4(c) 35-3 4 |
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Answer» a) 1(2×6-4×5)+6(4×7-2×3) = 1(12-20) +6(28-6) = 1(-8) +6(22) = -8+132 = 124 b) 2(3×4-(-4)(-3))-(-1)(4×1-(-4)(5)) = 2(12-12)+1(4+20) = 24 |
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| 66898. |
3 Describe the Distributive Property.Use the Distributive Property to expand the expression -3(6.3x+ 1.5y).Lalwhat expression is equivalent to "37.5% of R "?37.5A 10037.5rectangle?Đ 100C 37.5RD R+37.5Ra tin. If the meal c |
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Answer» 3. Distributive law -3 (6.3x + 1.5y) -3 × 6.3x + (-3) × (1.5y) -18.9x - 4.5y 4. 37.5 % of R 37.5------- × R100 37.5 R---------- 100 option (B) is correct. Please hit like button if you like my solution thanks |
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| 66899. |
find the product using identities (5x -9) (5x -9) |
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Answer» Use (a-b) ( a-b) = (a-b)² = a² + b² - 2ab (5x-9) (5x-9) = (5x-9)² = (5x)² + 9² - 2 × (5x) × 9 = 25x² + 81 - 90x Hit like and BeScholr |
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| 66900. |
find the product using identities (2.5-1.4) (2.5+1.4) |
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Answer» Use a² - b² = ( a-b) ( a+b) (2.5 - 1.4) ( 2.5 + 1.4) 2.5² - 1.4² 4.29 |
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