DELHI POLICE CONSTABLE QUIZ-3

A sum of ₹ x is divided among A, B and C such that the ratio of the shares of A and B is 3 : 4 and the ratio of the shares of A and C is 5 : 8. If the difference between the shares of B and that of C is ₹ 312, then the value of x will be:

The ratio in which tea costing Rs. 192 per kg is to be mixed with tea costing Rs. $150 / \mathrm{kg}$ So that the mixed tea when sold Rs. 194.40 $\mathrm{kg}$, gain a profit of $20 \%$ is:

‘A’ can complete a piece of work in 12 days. ‘A’ and ‘B’ together can complete the same piece of work in 4 days. In how many days can ' B ' alone complete the same piece of work?

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

$45 \%$ of $240+40 \%$ of $360=? \times 21$

Rahim started his journey late by 15 minutes due to which he had to drive at $54 \mathrm{~km} / \mathrm{h}$ instead of $45 \mathrm{~km} / \mathrm{h}$ to reach his destination on time. Find the distance covered during this journey.

A sum of money is paid back in two annual installments of Rs 24,255 each, allowing $5 \%$ compound Interest annually. The sum borrowed was

The cost price of an article is ₹ 1,545, which is 25 % below the marked price. If the article is sold at 18 % discount, what profit per cent is made on the transaction?

The average age of a husband and a wife was 27 years when they married 4 years ago. The average age of the husband, the wife and a newborn child is 21 years now. The present age of the child is -

A solution of 45% alcohol is mixed with a solution of 60% alcohol in the ratio of 2:3. In what ratio should the resultant solution be mixed with a 72% alcohol solution to get a 66% alcohol solution?