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Question 1:

A sold a mobile phone to B at a gain of 25% and B sold it to C at a loss of 10%. If C paid ₹ 5,625 for it, how much did A pay (in ₹) for the phone?

Question 2:

Twice the efficiency of $\mathrm{A}$ is equal to thrice the efficiency of B and four times the efficiency of C. If working together they finish the work in 12 days, then B alone will finish the work in --------- days.

Question 3:

A shopkeeper earns a profit of $31 \%$ after selling a book at $31 \%$ discount on the printed price. The ratio of the cost price and marked price of the book is:

Question 4:

If a student's marks were increased by 25%, he would have scored 75 in his test. How much did he actually score?

Question 5:

What is the third proportional to 27 and 45 ?

Question 6:

The difference of squares of two numbers is 180. The square of the smaller number is 8 times the larger number. Find the two numbers.

Question 7:

Walking at the speed of $10 \mathrm{~km} / \mathrm{hr}$, Madhu reached her university 15 minutes late. Next time she increases her speed by $2 \mathrm{~km} / \mathrm{hr}$, but still she reaches 5 minutes late. What is the distance of the university from his home?

Question 8:

Find the least number which is exactly divisible by 18, 45 and 99.

Question 9:

At certain rate of interest Rs. 5,400 becomes Rs. 5950 in 6 years. If rate of interest increases by $5 \%$. Find the new Amount.

Question 10:

If A sell 21 articles for Rs. 1 with a loss of $30 \%$. If he wants profit of $5 \%$ then he will sell Number of articles for Rs. 1?