Peter bought an item at 20% discount on its original price. He sold it with 40% increase on the price he bought it. The new sale price is greater than the original price (in percent) by: 

Find the value of the given expression.

 $$\sqrt { 8+\sqrt { 1681} \ } \ $$

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

$${210\over14}×{17\over15}×?=4096  $$

A woman invests Rs. 2000 at the start of each year at 5% compound interest per annum. How much will her investment be at the end of the 2^nd year?

A is inversely proportional to square of B whereas directly proportional to C. Value of A was 27 when value of B was 4 and value of C was 6. Find the value of A when value of B will be 3 and value of C will be 8.

How much parts of the pits, which are 48 meters long, 16.5 meters wide and 4 meters deep, can be filled in the soil, which is obtained by cylindrical tunnel of 4 meters diameter and 56 meters long?

Chandu bought a watch at 20 percent discount on mark price but sold it at mark price. Find the percentage of profit.

If Cost price of an article is Rs.220 and profit is 20 %, then what will be the selling price of the article?