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Campus Recruitment Non-Tech Quiz-11

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Question 1

The sum of two numbers is 36 and their HCF is 4. How many pair of such numbers are possible?

Question 2

What is the average of all numbers between 9 and 90 which are divisible by 8?

Question 3

A and B enter into partnership with initial investment Rs. 3000 and Rs. 6000 respectively. Two months later A increased his investment by Rs. 2000. After one more month B withdraw Rs. 2000 at the same time a third person C join them with Rs. 8000. What will be the ratio of their sum after six months?

Question 4

Three pipes A, B and C can fill a tank in 30 minutes, 20 minutes, and 10 minutes respectively. When the tank is empty, all the three pipes are opened. A, B and C discharge chemical solutions P,Q and R respectively. What is the proportion of the solution R in the liquid in the tank after 3 minutes?

Question 5

Difference between ages of Sonu and Monu is 10 years. 10 years ago Monu was twice old than Sonu, then what is the respective ratio of present ages of Sonu and Monu?
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Jul 13GATE & PSU CS