Mathematics - MOST IMPORTANT SSC CPO Previous Year Questions

In an election between two candidates, the candidate who gets $\displaystyle 35\%$ of the votes polled is defeated by $\displaystyle 15,900$ votes. What is the total number of votes polled?

In an election, $\displaystyle 95\%$ of the total voter cast their votes. In this election, there were only two candidates A and B. The winner A, by obtaining $\displaystyle 75\%$ of the total votes, defeated his contestant B by $\displaystyle 5500$ votes. Find the total number of voter in the election.

In an election, A received $\displaystyle 27\%$ of the votes and B received $\displaystyle 125,982$ votes. $\displaystyle 19\%$ did not cast their votes. Find the number of votes received by A.

In an election between two candidates, one got $\displaystyle 60\%$ of the total valid votes. $\displaystyle 25\%$ of the votes were invalid. If the total number of votes was $\displaystyle 15,000$, then find the number of valid votes that the other candidate got.

In an election between two candidates, 20% of the voter on the voter list did
not cast their votes and 80 voter cast their ballot papers blank. The winner
secured 45% of all the voter in the list and he got 280 votes more than his
rival. The number of voter on the list was:

A marketing agent earns a commission of 2% on first
₹2,00,000, 1.5% on next ₹2,00,000 and 1% on the remaining amount of sales
made in a month. If the sales achieved by the agent for the month of April 2018
are ₹5,68,000. The commission earned is:

42% of Ranita's
weekly income is equal to 56% of Bhaskar's weekly income. If Bhaskar's weekly
income was raised by ₹200, while Ranita's weekly income did not change, the
ratio of the weekly incomes of Ranita and Bhaskar, respectively, would have been
5 : 4. What is Ranita's weekly income (in ₹)?

$\displaystyle 57\%$ of Ranita's weekly income is equal to $\displaystyle 76\%$ of Bhaskar's weekly income. If Ranita's weekly income was reduced by ₹$\displaystyle 400$, while Bhaskar's weekly income did not change, the ratio of the weekly incomes of Ranita and Bhaskar, respectively, would have been $\displaystyle 6 : 5$. What is Bhaskar's weekly income (in ₹)?

The monthly salary of a person was ₹$\displaystyle 75,000$. He used to spend on Family Expenses (E), Taxes (T), Charity (C) and rest were his savings. E was $\displaystyle 60\%$ of the income, T was $\displaystyle 20\%$ of E, and C was $\displaystyle 15\%$ of T. When his salary got raised by $\displaystyle 40\%$, he maintained the percentage level of E, but T became $\displaystyle 30\%$ of E and C became $\displaystyle 20\%$ of T. The ratio of the savings of his earlier salary to that of his present salary is:

The population of a village increased from 20,000 to
23,000 in a year. What is the percentage increase?

Shiva invests ₹1,53,000, which is 30% of her annual income,
in mutual funds. What is her monthly income (in ₹)?

In a sweet, one-third is sugar. If the price
of sugar now is $\displaystyle \dfrac{7}{6}$ of the previous price, what is the effective
percentage increase in the cost of the sweet?

Ramesh spent ₹30,000 on Diwali shopping and ₹45,000 on
buying a TV set, and the remaining 40% of the total amount he had as cash with
him. What was the total amount (in ₹)?

A square plot of
land is to be expanded such that its area becomes 225% of the original. By
what percentage must each side be increased?

If the radius of a sphere is increased by 20%, then
find the percentage increase in its volume.

If the length and breadth of a cuboid are increased by 6%
and 8%, respectively, then the percentage increase in its volume (correct to
two decimal places) is:

The population
of a city increases every year at the rate of 5%. If the population of the
city is 16000, what will be the population after 2 years?

The strength of a school increases and
decreases every alternate year by 15%. If it started with an increase in 2012,
then the strength of the school in the beginning of 2015, as compared to that
in 2012, had (correct to two decimal places):

If the number of school going children in a town is $\displaystyle 64000$ and it is increasing annually by $\displaystyle 10\%$, then what will be the number of school going children in the town at the end of $\displaystyle 3$ years?

The price of diesel is increased by $\displaystyle 26\%$. A person wants to increase his expenditure by $\displaystyle 15\%$ only. By what percentage, correct to one decimal place, should he decrease his consumption?