A group of 240 persons consisting of students and teachers is travelling in a train. For every 15 students, there is one teacher. Then, the number of teachers is
A father is 3 times as old as his son. Five years back he was 7 times as old as his son. The age of the son is
The bar graph given below shows the percentage distribution of total expenditure of a company under various expense heads during 2003.What is the ratio of the total expenditure on infrastructure and transport to the total expenditure on taxes and interest on loans?
A sum of money amounts to Rs. 6690 after 3 years and Rs.10,035 after 6 years on compound interest. The sum is :
The following line graph gives the annual percent profit earned by a company during the period 1995 - 2000. If the income in 1998 was Rs. 264 crores, what was the expenditure in 1998?
Mr. Jones gave 40% of the money he had to his wife. He also gave 20% of the remaining amount to each of his three sons. Half of the amount now left was spent on miscellaneous items and the remaining amount of 12,000 was deposited in the bank. What amount of money did Mr. Jones have initially?
What number should replace the question mark (?) ?
A dealer sold three-fourth of his articles at a gain of 20% and the remaining at cost price. What is the gain earned by him in the whole transaction?
In what ratio must water be mixed with milk to gain 20% by selling the mixture at cost price?
If a cube is formed from the following figure, then which face will be opposite to the face having 3 dots?
