SSC CPO QUANT QUIZ-10

$\mathrm{A}$ can do a piece of work in 10 days while $\mathrm{B}$ can do the same work in 12 days and $\mathrm{C}$ can do the same work in 15 days. In how many days together they can complete the work?

Manu's piggy bank contains Rs. 221 in the form of 50 paise, Rs. 1 and Rs. 2 coins in the ratio of 4: 3: 6. What is the number of 50 paise coins in the piggy bank?

A motor car goes to a place at a speed of $20 \mathrm{km} / \mathrm{hr}$ and returns from there at a speed of $30 \mathrm{~km} / \mathrm{hr}$ The average speed (in $\mathrm{km} / \mathrm{hr}$ ) of the car in the entire journey is:

If $a^{3}-b^{3}=72$ and $a-b=3$, then the value of $a b$ is

The value of

$\frac{(2.9)^{3}+(8.7)^{3}}{(2.9)^{2}-2.9 \times 8.7+(8.7)^{2}}$ is:

The greatest four digit number which is exactly divisible by 12,15,20 and 54 is:

Find the HCF of 1048 and 1441.

Direction :- What will come in the place of the question mark(?) in the following question?

$\left(16^{2}-74\right)=(?) \%$ of 546

A, B and C subscribe to a business of Rs. 50,000 . B subscribes Rs. 6,000 more than C and A subscribes Rs. 2,000 more than B. What will be A's share of profit out of a total profit of Rs. 10,000 ?