Mathematics mcqs

when the price of a toy was increased by 20 % of the number of toys sold was decreased by 15 %. what was the effect on the sales of the shop?

when the numerator of a fraction is decreased by 25% and its denominator is decreased by 20%, the new fraction obtained is 3/4.

when a plot is sold for rs. 18,700, the owner loses 15%. at what price must that plot be sold in order to gain 15%?

when a number is first increased by 10 % and then reduced by 10 % the number:----------?

when 5% is lost in grinding wheat, a country has to import 20 million bags; but when only 2% is lost, it has to import only 15 million bags.

when 2 is added to half of one-third of one-fifth of a number, the result is one-fifteenth of the number. find the number?

what will be the ratio of simple interest earned by certain amount at the same rate of interest for 6 years and that for 9 years ?

what will be the least number which when doubled will be exactly divisible by 12, 18, 21 and 30?

what will be the difference between simple and compound interest at 10% per annum on a sum of rs. 1000 after 4 years?

what will be the cost of building a fence around a square plot with area equal to 289 sq ft, if the price per foot of building the fence is rs. 58?

what will be the compound interest on rs 25000 after 3 years at 12% per annum?

what is the volume of a cube (in cubic cm) whose diagonal measures 4√3 cm ?

what is the total surface area of a right circular cone of height 14 cm and base radius 7 cm?

what is the ratio of faheem’s salary to imran’s salary to naveed’s salary if faheem makes 80,000 rupees ,imran 70,000 rupees and naveed makes 50,000 rup

what is the ratio between perimeters of two squares one having 3 times the diagonal then the other?

what is the rate of interest at which rs.150 becomes rs. 220 in 10 years.

what is the probability that a leap year has 53 sundays and 52 mondays?

what is the principle amount which earns rs.132 as compound interest for the second year at 10 % per annum?

what is the present worth of rs. 132 due in 2 years at 5% simple interest per annum ?

what is the perimeter of a square field whose diagonal is 8√2?

what is the length of the longest pole which can be kept in a room 12 m long, 4 m broad and 3 m high?

what is the least number which when divided by 8, 12, 18 and 24 leaves the remainders 4, 8, 14 and 20 respectively?

what is the difference between the compound interest on rs.12000 at 20% p.a. for one year when compounded yearly and half yearly?

what is the difference between the c.i. on rs. 5000 for 1 1/2 years at 4% per annum compounded yearly and half-yearly?

what is the diameter of a wheel that makes 113 revolution to go 2km 26 decametre?