If a positive number is increased by 10 then it becomes 1575 times of the reciprocal of the original number. Find the original number.

A man sold two books, one at a loss of 10% and other at a gain of 25%. If the cost price of each book is same, then find the overall profit/loss percentage in this transaction.

A solution containing 48 ml of acid and 52 ml of water is completely mixed with some quantity of 25% acid solution. If the ratio of acid to water in the final mixture is 3:5, then find the quantity of the 25% acid solution mixed to the initial solution.

A number is 31.25% of another number. When the smaller number is increased by 150, it becomes 50% of the larger number. Find the value of the larger number.

Two friends A and B, each have some mangoes.B has 50% more mangoes than A. If B gives 5 mangoes to A then the mangoes with A and B becomes same. Find the difference between the mangoes A and B have with them initially.

Two friends A and B, each have some mangoes.B has 50% more mangoes than A. If B gives 5 mangoes to A then the mangoes with A and B becomes same. Find the difference between the mangoes A and B have with them initially.

What will come in place of the question mark (?) in the following series?

5, ?, 25, 55, 117, 243

A boy cycles from his home to his school with a speed of 12 km/hr and reaches his school in 45 minutes. If he returns home at a speed of 3 km/hr more than the speed of going to his school, then find his average speed for the whole journey.

A shopkeeper buys 12 books at Rs. 200 each. He sells 8 books at 15% profit. He marks up the remaining books by 25% and then offers a discount of 12%. Find his overall profit percentage.

What will come in place of the question mark (?) in the following series?

18, 30, 54, 90, 138, ?

What will come in place of the question mark (?) in the following series?

13, 55, 111, 183, 273, ?

The age of Rahul, Vijay and Rakesh are in the ratio of 9:7:12, respectively. If the age of Rakesh 5 years ago was 19 years, then find the average present age of Rahul and Vijay.

The following numbers form a series. Find the odd one out.

132, 532, 732, 832, 882, 932

The following numbers form a series. Find the odd one out.

5400, 900, 180, 75, 15, 7.5

A shopkeeper marked an article 75% above the cost price and sold it after two consecutive discounts of 10% and 20%. Find the cost price of the article, if in this transaction he had a profit of Rs. 1,950.

Four number-pairs have been given, out of which three are alike in some manner and one is different. Select the number-pair that is different from the rest.

Four number-pairs have been given, out of which three are alike in some manner and one is different. Select the number-pair that is different from the rest.

Four number-pairs have been given, out of which three are alike in some manner and one is different. Select the number-pair that is different from the rest

Select the odd word/letters/number/word pair/number pair from the given alternatives.

Select the odd word/letters/number/word pair/number pair from the given alternatives.