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Mathematics quiz on Number System, LCM and HCF (07-03-2021)

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Question 1

In which of the following, both face value and place value of 8 are same

Question 2

What is that least number which when divided by 12, 15 and 54 leaves a remainder of 3 in each case?

Question 3

The sum of four consecutive number is 42. What is the sum of first three consecutive number?

Question 4

Find the LCM of ,  and ?

Question 5

If then what is the value of x?

Question 6

What will be the sum of their reciprocals if the sum of two number is 20 and their product is 80.

Question 7

If the unit digit of the product of the expression (5637 × 2673 × 183 × 779 × 901 × 987A) is 9, then find the digit in the place of A.

Question 8

Mahesh has to do a multiplication. Instead of taking 32 as one of the multipliers, he took 64 . As a result, the product went up by 640. What is the new product?

Question 9

Find HCF of 2.1, 10.5 and 1.89

Question 10

What is the smallest number which when increased by 5 is divisible by 12, 18 and 30?

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