SSC CPO QUANT QUIZ-1

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Question 1:

A solution contains acid and water in the ratio of $4: 5 .$ If $20 \%$ of the solution is replaced by water, then what will be the ratio of acid and water in the new solution?

Question 2:

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

$5 \frac{15}{17} \%$ of $4913-(15)^{2}=(?+1)^{2}$

Question 3:

A boy went to his school at a speed of $12 \mathrm{~km} / \mathrm{hr}$ and returned to his house at a speed of $8 \mathrm{~km} / \mathrm{hr}$. If he has taken 50 minutes for the whole journey, what was the total distance walked?

Question 4:

When $x$ is subtracted from each of $18,25,28$ and $42$ , the numbers so obtained in this order are in proportion. What is the value of $\mathrm{x}$ ?

Question 5:

A alone can complete a work in 25 days and $B$ alone can complete the same work in 15 days. If $C$ is $60 \%$ less efficient than B, then find time taken by A and C together to complete the same work?

Question 6:

In an examination, $51 \%$ students fail in English and $45 \%$ fail in Mathematics. If $21 \%$ students failed in both the subjects and only 169 students passed in the examination, then what is the total number of students appeared in the examination?

Question 7:

If the income of A and B is 21000 and 18500. The income of A is increased by 30% and the income of B is increased by 40%. Then find the total income of A and B?

Question 8:

The area of a rectangle is equal to the area of a square whose diagonal is $4 \sqrt{6} \mathrm{~cm}$. If the ratio of the length and width of the rectangle is $4: 3$, then find the perimeter of the rectangle?

Question 9:

if $(a-1)^{2}+(b+2)^{2}+(c-1)^{2}=0$ then find $2 a$ $-3 b+7 c$.

Question 10:

What is the value of $a^{3}+b^{3}+c^{3}-3 a b c$, when $a=95, b=96$ and $c=97$.

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