Ravish has three boxes whose total weight isKg. Box B weighs kg more than box A and box C weighs kg more than box B. Find the weight of box A.

There are 180 multiple choice questions in a test. If a candidate gets 4 marks for every correct answer and for every unattempted or wrongly answered question one mark is deducted from the total score of correct answers. If a candidate scored 450 marks in the test, how many questions did he answer correctly?

A labourer is engaged for 20 days on the condition that he will receive Rs 60 for each day, he works and he will be fined Rs 5 for each day, he is absent. If he receives Rs 745 in all for how many days he remained absent?

The numberator of a rational number is 3 less than the denominator. If the denominator is increased by 5 and the numerator by 2, we get the rational number 1/2. Find the rational number.

In a rational number, twice the numerator is 2 more than the denominator If 3 is added to each, the numerator and the denominator. The niw fraction is 2/3. Find the original number.