Attempt now to get your rank among 4 students!

Question 1:

LCM of two numbers and HCF is 4284 and 32 respectively. If one number is 672 , find the other number.

Question 2:

In a class, the ratio of boys and girls is 4 : 5. If four new boys joined the class, the number of boys increased by 20%. Find the number of girls in the class?

Question 3:

Tap A can fill a cistern in 12 minutes. Tap B can fill the same cistern in 20 minutes. There is an outlet pipe that can empty 42 litre of water in a minute. If all pipes are opened together, tank become full in 30 minutes. Find volume of tank.

Question 4:

A, B and C started a business. The ratio of their amount is $2: 3: 4$ and the ratio of their profit is $5: 4: 3 .$ What will be the ratio of their time respectively for which amount is invested.

Question 5:

The difference between simple interest and compound interest of a certain sum of money at $20 \%$ per year for 2 years is 96 . Then the sum is:

Question 6:

What must be added to the numerator and denominator of the fraction $\frac{3}{4}$ to get the value $\frac{5}{6}$?

Question 7:

A boat covers $18 \mathrm{~km}$ downstream in 3 hours. If the speed of the current is $\frac{1}{3}$ of its downstream speed, in what time will it cover a distance of $100 \mathrm{~km}$ upstream?

Question 8:

2 men and 3 boys can do a piece of work in 10 days while 3 men and 2 boys can do the same work in 8 days. In how many days can 2 men and 1 boy do the work ?

Question 9:

A man invested $15 \%$ of his monthly income in LIC and the remaining amount gave to his mother. Her mother spent $10 \%$ of it in household expenditure and thus she saved Rs. 30,600 , then find the monthly salary of the man.

Question 10:

The HCF of two natural number $a$ and $b$ is 9 and $\mathrm{a} / \mathrm{b}=2.5$. What is the value of $\mathrm{a} \times \mathrm{b}$ ?