Instructions

For the following questions answer them individually

Question 51

In an examination, Gopal secured 15% more marks than Asha, and Asha secured 10% more marks than Sachin. How much per cent more marks did Gopal secure than Sachin?

Question 52

Pranjal takes twice as much time as Vikram or thrice as much time as Ashwin to finish a piece of work. Working together, they can finish the work in 6 days. Vikram can do the work alone in:

Question 53

If 60% of a number is equal to three-fourth of another number, what is the ratio of the first number to the second number?

Question 54

It is given that the average of 19 numbers is 8.5. If one number with value 63 was entered incorrectly as 25,then the corrected average is:

Question 55

The volume of a sphere is 38808 $$cm^{3}$$. What is its surface area (in $$cm^{2}$$)?

(Take $$\pi = \frac{22}{7}$$)

Question 58

Under a sale offer, Suresh was offered 20% discount on the part of the marked price that was paid in cash, but was charged 0.5% on the part of the marked price paid through a credit card. If Suresh paid 40% of the marked price in cash and the rest through a credit card, what percentage of the marked price was his total final payment?

Question 59

A woman can row 36 km downstream in 4 hours and 49 km upstream in 7 hours. What is the speed of the current?

Question 60

The marked price of a cell phone is â‚¹23,000.The shopkeeper offers successive discounts of 14% and 16%. How much, approximately,does a customer have to pay?

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