Question
In a school, the average height of the students of the
tenth standard is 100 cm. The average height of boys is 118 cm. whereas the average height of girls is 95 cm. What is the number of girls in the class if there are 20 boys?Solution
Average of total students' height =100cm. Average of 20boys height =118 Total height of 20 boys =118×20=2360cm Average of girls =95cm Let the number of Girls =x So the total height of x girls =95xcm. ATQ- (2360+95x)/20+x =100 2360+95x =2000+100x 5x =360 X =72.
Find out the number of circles in the figure.
What would be the symbol on the opposite side of '*' if the given sheet is folded to form a cube?
Which figure should replace the question mark (?) if the following figure series were to be continued?
Select the option that represents the correct order of the given words as they would appear in an English dictionary.
1. Adequate
2. ...
Read the given statement(s) and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at varian...
What should come in place of the question mark (?) in the given series based on the English alphabetical order?
WKG UHC SEY QBU OYQ ?
Select the pair in which the numbers are related to each other in the same way as are the numbers in the given pairs. (NOTE: Operations should be perfor...
P, Q, R, S, T, U and V are seven students in a class. They are compared on the basis of their height. T is shorter than S but taller than U. U is taller...
Select the option that represents the letters that, when placed from left to right in the following blanks, will complete the letter-series.
G _ ...
Martha said to Linda, “Your mother’s father’s only son’s only sister is my father’s wife.”
How is Linda related to Martha?
...
Relevant for Exams:
