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This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Use suitable identities to find the following products:- (i) (3-2x) (3+2x) |
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Answer» 9 – 4x²Step-by-step explanation:As PER the information provided in the QUESTION, We have :(3 – 2x)(3 + 2x)We are asked to find the PRODUCT of it using a suitable identity.As it is in the FORM of ⇒(a - b)(a + b), The identity USED will be — (a - b)(a + b) = a² – b².Where,a = 3b = 2x∴ Hence, ⇒ ⇒ ⇒ ∴ Product of (3 – 2x)(3 + 2x) = 9 – 4x².Learn more!( a + b)² = a² + b² + 2ab( a - b )² = a² + b² - 2ab( a + b )² + ( a - b)² = 2a² + 2b²( a + b )² - ( a - b)² = 4ab( a + b + c )² = a² + b² + c² + 2ab + 2bc + 2caa² + b² = ( a + b)² - 2ab(a + b )³ = a³ + b³ + 3ab ( a + b)( a - b)³ = a³ - b³ - 3ab ( a - b)If a + b + c = 0 then a³ + b³ + c³ = 3abc. |
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| 4. |
Simplify the following expression :(3 + √3)(3 - √3) |
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Answer» -STEP EXPLANATION:this REQUIRED ANSWER of QUESTION |
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| 5. |
Find the amount 180 for 1 year and 8months at 6percent per annum simple interest for class7 |
| Answer» SIMPLE INTEREST = 180 *1*6 | |
| 6. |
12450 in indian place value |
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Answer» -step explanation:In the DECIMAL number system, A digit's value is the digit multiplied by the value of its place. Place value of a digit GETS larger moving from right to left.In the number 12450, the place value of each digit is:Place Value ChartTen ThousandsThousandsHundredsTensOnes12450The digit 1 is in the ten thousands place. Its value is 10000The digit 2 is in the thousands place. Its value is 2000The digit 4 is in the HUNDREDS place. Its value is 400The digit 5 is in the TENS place. Its value is 50The digit 0 is in the ones place. Its value is 0 |
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| 7. |
A measured value is 219.94. Its value when taken up to three significant figures is? |
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| 9. |
Find the area of the following:- e) of trapezium parallel sides are 13 cm and h =12 cmplease solve and answer |
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Answer» Answer 4.0/5 219 Brainly User Given:- ABCD Is a TRAPEZIUM AB = 25 CM DC = 13 cm AD & BC = 15 cm CONSTRUCTION:- Draw CE || AD To FIND :- Area of trapezium ABCD Solution :- ADCE is a parallelogram ( AD || CE & AE || CD). ∴ AE = DC = 13 cm ( Opposite side of parallelogram are equal) BE = AB - AE BE = 25 - 13 BE = 12 cm In ∆ BCE S = a + b + c/2 S = 15 + 15 + 12 /2 S = 21 Area of ∆ BCE = √ s( s - a)(s - b)( s - c ) Area of ∆ BCE = √ 21(21-15)(21-15)(21-12) Area of ∆ BCE = √ 21 × 6 × 6 × 9 Area of ∆ BCE = 18√21 cm^2 -----1 h is the height of ∆ BCE Area of BCE = 1/2 ( Base × Height ) = 1/2(12)(h) = 6h -----2 From 1 & 2 6h = 18√21 => h = 3√21 cm The height of trapezium ABCD is equal to height of ∆ BCE. Area of trapezium = 1/2 ( AB + CD ) × h = 1/2 (25 + 13) × 3√21cm^2 = 57√21 cm^2 |
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| 10. |
A fruit seller buys some oranges at the rate of ₹ 5 per orange. He also buys an equal number of bananas at the rate of ₹ 2 per banana. He makes a profit of 20% on oranges and a profit of 15% on bananas. In the end, he sold all the fruits. If he earned a profit of ₹ 390, find the number of oranges. |
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Answer» no. of oranges =X= no. of BANANAS cost price =5x+2x=7xGain on oranges =20/100×5x=xGain on Bananas = 15/100×2x=0.3xProfit ⇒1.3x=390⇒x=390/1.3=300No. of oranges PURCHASED =300. |
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| 12. |
Gain of Rs 90 200 m due west please give me answers |
| Answer» | |
| 13. |
A pair of supplementary are in the ratio of 4:5 find them. |
| Answer» PLEASE guys start FOLLOWING me and mark me BRAINLIEST ☺️ | |
| 14. |
@ 3). There will be numbers which are not Ta Honou@ 2) corile the humbers which is whole numbersbut not natural &rol mhole |
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Answer» The NUMBER which is WHOLE number but not NATURAL number is 0. |
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| 15. |
The HCF of the given numbers connot be than the number themselves |
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Answer» Step-by-step EXPLANATION:LESS than |
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| 17. |
Two sides of a traingle are 3cm and 6cm. What can be the maximum length of the third side. Pls Help me |
| Answer» MAXIMUM LENGTH can be 8.9 Step-by-step explanation:we know that sum of other two sides is always greater than 3rd side of the triangle therefore 3 + 6 = 99 > 8.9So the answer is 8.9cm | |
| 18. |
in a test (+5) marks are given for every correct answer and (-2) marks are given for every incorrect answer and 0 for answer not attempted. Ram gets 3 correct and 4 incorrect out of 7 questions he attempted. What is his score? |
| Answer» MARKS for CORRECT answer = 5marks for incorrect answers = -2ram gets 3 correct answer = 5 × 3 = 15 marks And ALSO 4 incorrect answers = 4 × - 2 = -8 marks total marks = 15 + (-8)= 15 - 8 = 7 marks So Ram scored = 7 marks | |
| 19. |
(20) .1/4(x-2) =1/5(x-1) |
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Answer» I HOPE it HELPS you.Please MARK me BRAINLIEST |
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| 22. |
(Root3/5+root5/2)(root5+root2 |
| Answer» ANSWER IS YO D O U MStep-by-step EXPLANATION: | |
| 23. |
In a flat race,the runners up, running at /m/s lost by 3 secs to the winner. If the runners up took 15 secs to cover the distance, what was the speed of the winner? |
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Answer» the SPEED of the RUNNER is 5m/sStep-by-step EXPLANATION:S=D/T S=15/3S=5m/s |
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| 24. |
10 power2 × 10 power-4× 10 power 5× 10 power 6 |
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Answer» -step explanation:10 POWER2 × 10 power-4× 10 power 5× 10 power 610²×10-⁴×10⁵×10⁶°=10²+²+⁵=10⁹this answer MIGHT be wrong |
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| 25. |
Lowest form of 21:32:22 |
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Answer» no LOWEST form because 21 is not SHOWING SIMILARITY with other TWO. |
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| 27. |
If a = 35, b = 10 and c = 5, verify that: a + (b + c) = (a + b) + c |
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Answer» -step EXPLANATION:a is 35B is 10c is 5A+(b+c)=35+(10+5)35+1550(a+b)+c(35+10)+545+550hence PROVED |
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| 28. |
The exterior angle of a triangle is the sum of________on opposite side. |
| Answer» INTERIOR Step-by-step EXPLANATION:HOPE it is HELPFUL | |
| 29. |
Plsss answer fastplsss |
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Answer» d) ANGLE R = angle XPLS MARK as BRAINLIEST |
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| 31. |
Verify distributie laws if K = { a,b,c,d,e,f},L = {b,c,d,g} M = { a,b,c,d,h}⚠️ don't spam! |
| Answer» | |
| 32. |
There are 52,178 apartments in a township.21,256 apartments are already occupied. how many apartments are still vacant ????? Meanings in HindiOccupied - कब्जा कर लियाVacant - ख़ाली |
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Answer» re 52,178 APARTMENTS in a township.21,256 apartments are already occupiedhow many apartments are STILL VACANT ?TOTAL apartment in a township - apartments which are already occupied52178-21256=30922Therefore 30922 apartments are still vacant |
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| 33. |
What happened to Achilles in the end? this question is from class 8th English book jk Bose lesson name achilles |
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Answer» According to Greek mythology, when Achilles was born, his mother held him up by his HEEL and dipped him in the river STYX so that he could live forever. After surviving MANY battles, Achilles FINALLY died after an arrow STRUCK him on his heel. |
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| 35. |
In the adjoining figure ABC is an equilateral triangle and BCDE is a square. Prove that AE = AD |
| Answer» HEY here is your proof pls mark it as brainliest Step-by-step explanation:so here quadrilateral BCDE is a SQUARE thus then BC=CD=DE=EB (1)Moreover TRIANGLE ABC is an equilateral triangle so thus AB=BC=AC (2)so CONSIDERING triangle EAB and triangle DAC AB=ACEB=CD from (1) and (2)Moreover Angle EAB=Angle DAC (common)Hence Triangle EAB congruent to Triangle DAC by SAS Test thus then AE=AD (c.s.c.t)Hence proved | |
| 36. |
Rationalise the denominator |
| Answer» HENCE rationalizing the GIVEN number we get root 2 HOPE it helps you ✌️✅✅✅ | |
| 37. |
Math -7_________-12 |
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Answer» ]=-12Hope it HELPS you MARK me as the BRAINLIEST |
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| 39. |
Find the value of (1/-3) -1 explain properly |
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Answer» its:- -×- = + -1/3× (-1) 1/3 |
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| 40. |
Simplify the following decimal0.257 + 10.1 + 9.952 |
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| 41. |
Verify the following:(-23)[(-5)+(+19)]=(-23) x (-5)+(-23) x(19) |
| Answer» ANSWER OF YOUR QUESTION | |
| 42. |
To the nearest 10 ncarest 100 6264 Rounded off to the nearest 1000 is 6000 Exercise IE 1. Round off the following to the nearest ten. () 52 (1) 17 (iii) 95 (iv) 93 (v) 253 (vi) 166 (vii) 892 (viii) 578 (ix) 875(x) 1593 (xi) 9799 (xii) 7932 2. Round off to the nearest ten, what numbers can be estimated as (0)70 [Hint. 65, 66, 67, 68, 69, 71, 72, 73, 74) (6) 50 (ii) 140 (iv) 980 (v) 2600 (VI) 6000 3. Round off the following to the nearest hundred. (i) 563 (i) 895 (iii) 1648 (iv) 3687 (v) 8865 (vi) 38481 (vii) 7008 (viii) 80705 4. Round off to the nearest hundred, what numbers can be estimated as (1) 700 (Hint. Numbers from 650 to 699 and 701 to 749) (6) 800 (1) 2300 (iv) 7500 (v) 30.000 6. Round off the following numbers to the nearest thousand. 0) 4939 (1) 6139 (ii) 5789 (iv) 9893 (V) 2235 (vi) 40386 (vii) 18589 (viii) 4,18,500 (ix) 3,45,376 (x) 25,65,680 6. What numbers will be rounded off to each of the following thousands? 0) 11,000 (1) 20,000 (11) 4,000 (iv) 68,000 7. Give the estimation to the nearest ten, hundred and thousand of the following. 0) 892 (ii) 435 (ili) 9265 (iv) 7852 Estimating Sums and Differences Mrs Rai owns a sports goods store. She has 58 cricket balls on display and another 96 in the storeroom. estimate how many cricket balls she has in stock? She wants |
| Answer» DONT knowStep-by-step EXPLANATION:OK | |
| 43. |
ΔABC has AB = 4 and BC = 7 , then ________. (A) AC 4(C) 4 |
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Answer» -STEP EXPLANATION:OPTION D is CORRECT3 |
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| 45. |
16. Find the smallest 5-digit number which is exactly divisible by 41. |
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Answer» Step-by-step explanation:56856 |
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| 46. |
Hello my question is that my question is that decide whether set A and B are equal set given give reason for your answer A is equal to even prime number b is equal to set b is equal to X into x 7 x minus 1 is equal to 13 |
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Answer» 5856 is the answerStep-by-step EXPLANATION:PLEASE MARK as BRAINLIEST |
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| 47. |
00000.1 into fraction |
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Answer» The ANSWER is 1/10Step-by-step EXPLANATION: |
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| 48. |
8351+ 13154651+ 3823 |
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| 49. |
3. (-6) * (-4) × (-2) = |
| Answer» 24 × -2 = (-48). =(-48)Step-by-step EXPLANATION:by INTEGERS | |
| 50. |
Solve the following Simple Equations: 2x/3=18 |
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Answer» -step EXPLANATION:CLASS 6 students come here I will give you notes class is started come plz plz and it is free class no FEE NEED |
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