The actual area of a rectangle is 60 Cm2, but while measuring its length a student decreases it by 20% and the breadth increases by 25%. The percentage error in area, calculated by the student is :
Quiz Recommendation System API Link  https://fresherbellquizapi.herokuapp.com/fresherbell_quiz_api
#  Quiz 

1
Discuss

The ratio 5 : 4 expressed as a percent equals :
Solution5 : 4 = 5/4 = ( (5/4) x 100 )% = 125%. 
2
Discuss

The price of raw materials has gone up by 15%, labor cost has also increased from 25% of the cost of raw material to 30% of the cost of raw material. By how much percentage should there be reduction in the usage of raw materials so as to keep the cost same?
Solution 
3
Discuss

Gauri went to the stationers and bought things worth Rs. 25, out of which 30 paise went on sales tax on taxable purchases. If the tax rate was 6%, then what was the cost of the tax free items?
Solution 
4
Discuss

The price of a car depreciates in the first year by 25% in the second year by 20% in third year by 15% and so on. The final price of the car after 3 years, if the present cost of the car is Rs. 10,00,000 :
Solution 
5
Discuss

The cost of packaging of the mangoes is 40% the cost of fresh mangoes themselves. The cost of mangoes increased by 30% but the cost of packaging decreased by 50%, then the percentage change of the cost of packed mangoes, if the cost of packed mangoes is equal to the sum of the cost of fresh mangoes and cost of packaging :
Solution 
6
Discuss

In an office in Singapore there are 60% female employees. 50 % of all the male employees are computer literate. If there are total 62% employees computer literate out of total 1600 employees, then the no. of female employees who are computer literate ?
Solution 
7
Discuss

30% of a number when subtracted from 91, gives the number itself. Find the number.
Solution 
8
Discuss

If the price of a commodity is decreased by 20% and its consumption is increased by 20%, what will be the increase or decrease in expenditure on the commodity?
Solution 
9
Discuss

A and B are two fixed points 5 cm apart and C is a point on AB such that AC is 3cm. if the length of AC is increased by 6%, the length of CB is decreased by
Solution 
10
Discuss

Each side of a rectangular field diminished by 40%. By how much per cent is the area of the field diminished?
Solution 
#  Quiz 
Copyright © 2020 Inovatik  All rights reserved