In a chess board if 8 white squares are painted black, find the percentage of black squares on
the board?
Concept:
Number of square in chess = 64
Number of white square in chess = 32
Number of black square in chess = 32
Solution:
If 8 white square painted black
=> Number of black square in chess = 32 + 8 = 40
∴ Percentage of black square in chess = 40/64 × 100 = 62.5%
English
80 Questions
160 Marks
60 Mins English English20 Questions40 Marks12 Mins English English80 Questions160 Marks60 Mins EnglishA bus is moving at a speed of 82 km/hr. If its speed is reduced by 28%, then what will be the new speed of the bus (in km/hr)?
A person spends 50% of his monthly salary on house rent. If he spends ₹912 on transport and ₹3,799 on groceries every month and saves the remaining ₹131, then find his monthly salary (in ₹).
If 86% of a number is added to 350, then the result is the number itself. Find the number.
Rakesh spends 15% of his monthly income on his household expenditure, 20% on books, 30% on clothes and saves the rest. On counting, he comes to know that he has finally saved Rs.12565. Find his monthly income. (In Rs.)
Louis bought a new plot which needs to be fenced immediately. Due to this, the length as well as the breadth of the rectangular working place is reduced by 7%. Find the % decrease in the area.
In an election between two candidates, 15% of the voters in the voters' list did not cast their votes and 10% of the votes polled were declared invalid. The winning candidate got 60% of the total valid votes and won by a majority of 7650 votes. The number of valid votes was :
Suggested Test Series
Suggested Test Series
