Math MCQ Part-14

The simple interest on a principle for 6 months at an interest rate of 10% per annum is Rs. a 100. What is the principal ?

Numbers A and B are 30% and 50%, respectively, more than the number C. The ratio of A to that of B is:

A sum of money at compound interest amounts to thrice itself in 3 years. In how many years will it be 9 times itself ?

Some persons can do a piece of work in 12 days. Two times the number of such persons will do half of the work in

A shopkeeper marks the price of an article at 80. What will be the selling price, if he allows two successive discounts of 5% each ?

A dealer had 120 kg of wheat. A part of it was sold by him at 10% gain and the rest at 25% gain. overall, he had gain of 15%. How much of the wheat was sold at 10% gain ?

A batsman in his 11th innings makes a score of 77 runs, there- by increasing his average score by 3. What is his average score after the 11th innings ?

The number between 4000 and 5000 that is divisible by each of 12, 18, 21 and 32 is

What is the fourth proportional to√6, √8 and√21 ?

A shopkeeper mixes three types of rice costing Rs. 50 per kg, Rs. 60 per kg and Rs. 75 per kg in the ratio of 3: 1:2. The average cost of the mixture per kg is: