Percentages

Q.

Find the percentage of pure gold in 22-carat gold, if 24-carat gold is 100$\%$ pure.

Q.

A's income is 25% more than B. By how much percent is B's income less than A?

1. 25%

2. 16.66%

3. 20%

4. 22.5%

Q.

Micro Sims Pvt. Ltd. produces $1200$ phones everyday. If out of these, $2\frac{1}{3}\%$ are faulty and $4\frac{1}{3}\%$ are defective in packaging. Then how many non-faulty and non-defective packaged phones are produced everyday?

Q.

A's income is 20$\%$ less than that of B. By what per cent is B's income more than A's ?

Q. The cost of 15 articles is equal to the selling price of 12 articles. Find the profit per cent.

1. 55%
2. 45%
3. 35%
4. 25%

Q. A number is increased by $10\%$ and then it is decreased by $10\%$. Find the net increase or decrease percent. [3 MARKS]

Q. 72% of 25 students are good in mathematics. How many are not good in mathematics?

1. 3
2. 9
3. 7
4. 5

Q.

The population of a town increases 10% annually. If the present population is 22000, find its population a year ago.

Q.

In an examination, $65\%$ of the total examinees passed. If the number of failures is $420,$ the total number of examinees is

(a) $500$

(b) $1000$

(c) $1200$

(d) $1625$

Q.

A table was sold for $₹2142$ at a gain of $5\%$.At what price it should it be sold to gain $10\%$.

Q.

$x\%$ of $y$ is $y\%$ of ?

Q.

Two numbers are respectively 30 percent and 40 percent less than a third number. What percent is the second of the first ?

Q.

A period of 4 hours 30 min is what per cent of a day? (a)$18\frac{3}{4}\%$ (b)$20\%$ (c)$16\frac{2}{3}\%$ (d)$19\%$

Q.

Balanced diet should contain 12$\%$ of protiens, 25$\%$ of fats and 63$\%$ of carbohydrates. If a child needs 2600 calories in his food daily, find in calories the amount of each of these in his daily food intake.

Q.

Gunpowder contains $75$$\%$ nitre and $10$$\%$ sulphur. Find the amount of gunpowder which carries $9kg$ nitre. What amount of gunpowder would contain $2.5kg$ sulphur?

Q.

If the selling price of $16$ water bottles is equal to cost price of $17$ water bottles . Find the gain per cent earned by the dealer.

Q.

Divide Rs. 7000 among A, B and C such that A gets 50$\%$ of what B gets and B gets 50$\%$ of what B gets and B gets 50$\%$ of what C gets.

Q.

One - third of 1206 is what per cent of 134? (a) 3$\%$ (b)30$\%$ (c)20$\%$ (d)300$\%$

Q.

Aman's income is 20% less than that of Anil. How much percent is Anil's income more than Aman's income?

Q.

Find the percentage of pure gold in 22-karat gold, if 24-karat gold is hundred percent pure gold.

1. $91\frac{2}{3}\%$

2. $8\frac{2}{3}\%$

3. $91\frac{5}{7}\%$

4. $9\frac{2}{3}\%$

Q.

In an election between two candidates, one, candidate secured 58% of the votes polled and won the election by 18, 336 votes. Find the total number of votes polled and the votes secured by each candidate.

Q.

What per cent of $\frac{2}{7}$ is $\frac{1}{35}$? (a) 2.5 $\%$ (b) 10 $\%$ (c) 20 $\%$ (d) 25 $\%$

Q.

A man bought two TV sets for $Rs.42500.$ He sold one at a loss of $10\%$

and other at a profit of $10\%$. If the selling price of each TV set is same, determine the cost price of each set.

Q.

Amit was given an increment of 20$\%$ on his salary. If his new salary is Rs. 15300, what was his salary before the increment ?

Q.

An alloy contains $40\%$ copper, $32\%$ nickel and rest zinc. Find the mass of zinc in one kg of the alloy.

Q.

In an examination a student has to secure 40percent marks to pass Rahul gets 178 Marks and fails by 32 marks what are the maximum marks?

Q.

x is 5% of y, y is 24% of z. If z. If x =480, find the values of y and z.

Q.

Find $12\frac{1}{2}$ percent of $64$ with an explanation.

Q.

Two numbers are respectively 20 percent and 50 percent more than a third number. What percent is the second of the first ?

Q.

Radha earns 22% of her investment. If she earns Rs. 187, then how much did she invest?