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1101.

Which of the following Roman numerals are not valid? Support your answer with reasons. a. VX b. LC c. VVXI d. CCC

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ANSWER :a.Not VALID B. Not valid C. INVALID d. valid
1102.

Evaluate using properties of whole numbers: 6823+(4770-:10)

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ANSWER :7300
1103.

Given thatc gt 0 . Which of the following is equal to a:b ?

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(a + B) :( b +C)
(a-c) : (b-c)
` a/c : b/c`
All of these

Answer :C
1104.

Find dy/dx if y=x-tanx

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ANSWER :`62^(@)`
1105.

Use your protractor to measure each of the angles marked in the following diagrams

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ANSWER :`116^(@)`
1106.

Find dy/dx if y=x^9

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ANSWER :`121^(@)`
1107.

Write 'T' for true for each of the statement given below: (i) 3(1)/(3)gt (33)/(10) (ii)8-1(5)/(6)= 7 (1)/(6) (iii) (1)/(2).(1)/(3)and (1)/(4) are like fractuions. (iv) (3)/(5) lies between 3 and 5. (v)Among (1)/(2), (1)/(3), (3)/(4), (4)/(3) the largest fraction is (4)/(3)

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`(ii) ,(III) and(V) `
` (i) , (iv)and(v)`
` (i) and(v)`
NONE of the above

Answer :C
1108.

Write whether the following are equivalent fractions or not. 3/(5) and 9/(11)

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ANSWER :the TWO FRACTIONS are not EQUIVALENT
1109.

Fill in the missing numbers: 4:5 = 32: square = square : 20 = 8: square

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ANSWER :`40:16:10`
1110.

Write the smallest factors of the following numbers (except for the number 1) 720

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ANSWER :2
1111.

Fill in the blanks so that the equality holds. Also state the property used in each case. 2438+9834 = "__________"+2438

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`9836`, ADDITION is commutative for WHOLE NUMBERS
`2234`, addition is commutative for whole numbers
`9834`, addition is commutative for whole numbers
`9834`, addition is associative for whole numbers

Answer :C
1112.

Find the variables and the terms in the following algebraic expressions. 2n-12

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ANSWER :N; 2N, -12
1113.

Write the predecessor of: 2,58,740

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ANSWER :C 2,58,739
1114.

Anu had Rs. 14,95,000 in her account. She withdrew Rs. 7,45,750 from her account. The next day she deposited Rs. 9,75,500 more into her account. Find the balance in Anu's account after the above transactions.

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`"RS. 13,24,750"`
`"Rs. 15,24,750"`
`"Rs. 17,24,750"`
`"Rs. 16,24,750"`

ANSWER :C
1115.

Convert the decimal fractions into proper / improper fractions : 70.400

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SOLUTION :`70.400=70.4=704/10`
1116.

Observe the figure and name Collinear points

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SOLUTION :POINT O
1117.

Find : - 7 - (-4)

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ANSWER :-3
1118.

Write the following for the following number names: Seventy-five lakh sixty -eight thousand nine hundred and twenty -eight.

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ANSWER :7568928
1119.

Answer the following based on Fig. C .(a) Which points lie in the interior of the angle ? (b )Which points lie inthe exterior of the angle

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<P>

ANSWER :P,Q (B) S.T
1120.

Reema had 2400 sweets, of which she distributed 424 among her schoolmates. Pooja had 2900 sweets, she distributed 620 of these among her schoolmates. Find the ratio of the sweets left with them.

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ANSWER :`247:285`
1121.

Write the mixed fractions given below as improper fractions: 34(12)/(17)

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ANSWER :`590/(17)`
1122.

Find dy/dx if y=4x-x^3

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ANSWER :35
1123.

Find dy/dx if y=x-9

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ANSWER :`28^(@)`
1124.

Three points A B and C are collinear . If points C , P and Q are collinear then will the point A,B,C,P and Q also be collinear ? Explain your answer with reasons:

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<P>

ANSWER :No necessarly , because there COULD be TWO lines intersecting at point C . Thus the points A and B could be on LIEN and the points P and Q could be on the other line.
1125.

Write the numbers whose expanded forms are given below: a. 2xx10,00,000+3xx1,00,000+5xx10,000+7xx10 b. 4xx1,00,00,000+5xx1,00,000+6xx10,000+5 c. 7xx10,00,00,000+5xx1,00,00,000+1xx10,000+2xx1,000+9

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ANSWER :a. 23,50,070 B. 4,05,60,005
C. 75,001,12,009
1126.

Find dy/dx if y=x^88

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ANSWER :`35^(@)`
1127.

Express the given numbers as: the difference of two odd primes: (i) 24 (ii) 6

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ANSWER :(i) `29-5` , (II) `11-5`
1128.

Show that the following fractions are in their simplest form: 4/(9)

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ANSWER : `4/(9)` is in its SIMPLEST FORM
1129.

Using the digits 5,2,0,1,4,9 write the following: a. the smallest 6-digit number b. the largest 6-digit number c. the smallest 7-digit number, using 5 twice and all other digits once d. the largest 7-digit number using 2 twice and all other digits once

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ANSWER :a. 1,02,459 B. 9,54,210 C. 10,24,59 d. 95,42,210
1130.

Evaluate the following 98-:7xx2xx3

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ANSWER :84
1131.

40 chocolate bars cost Rs 800. What will be the cost of 65 chocolate bars ? How many chocolate bars can we buy for Rs 1680 ?

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ANSWER :`RS 1300;84`
1132.

Divide as indicat : Rs 750 in the ratio 6:9.

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ANSWER :RS 300 and Rs 40
1133.

Write the following statements in the form of algebraic expressions. One-fifth of y decreased by 22.

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ANSWER :`(y)/(5)-22`
1134.

Will two diameters of a circle always intersect?

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ANSWER :YES
1135.

Observe the figure given below. Name parallel lines

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<P>

SOLUTION :PARALLEL LINES :line b || line m || line q line a || line p
1136.

State True or False. If the product of two whole numbers is 1, then at least one of them is one.

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ANSWER :T
1137.

Which of these is a closed figure?

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a
B
c
d

Answer :B
1138.

Draw the line ( or lines ) of symmetry , if any of the following numerals and count their number :

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Answer :(i) ONE (ii) none (III) none (IV) TWO
1139.

A mixed fruit drink is made from apple juice and grape juice. If 4.5 litres of juice has 3 litres of apple juice, how much apple juice Is there in 18 litres of juice.

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ANSWER :12 LITRE
1140.

Evaluate the following arithmetic expression: 24xx3-:8xx2xx4

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ANSWER :72
1141.

John walks to a library which is x km away from hishome. On his way back home, he stops at a shop that is (1)/(4) of the distance he had walked earlier. Find thedistance of the shop from John's home.

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ANSWER :`(X-(1)/(4)x)KM`
1142.

Find the variables and the terms in the following algebraic expressions. (3)/(4)m+6

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ANSWER :`m; (3)/(4)m, 6`
1143.

Write the terms of the following algebraic expressions. 12-x-2y

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ANSWER :12, -X, -2Y
1144.

Write the successors and predecessors of: 8,52,701

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ANSWER :100000, 99998
1145.

Evaluate: 15xx5-:3-15+10

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ANSWER :20
1146.

Vijay had some money but needed more to pay his household bills. The bills were for Rs. 1260. He had to borrow Rs. 637 from his friend to pay the bills. If he does not have any money left after paying the bills, find the amount that he had with him.

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ANSWER :RS. 623
1147.

Arrange in ascending order : -9, -2, -12, -3, 0, -17, 4, 8, -14

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ANSWER :`-17, -14, -12, -9, -3, -2, 0, 4, 8`
1148.

Write the mixed fractions given below as improper fractions: 3(2)/(3)

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ANSWER :`11/(3)`
1149.

Identify the following fraction as proper fraction, improper fraction or unit fraction: 4/(3)

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ANSWER :IMPROPER FRACTION
1150.

Two complementary angles are in the ratio 2: 3, find these angles

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ANSWER :`36^(@) and 54^(@)`