Question
A bowler gives 15 runs per wicket. He gives 30 runs and
takes 5 wickets in a last match after which his average becomes 13.5 runs per wicket. How many wickets had been taken by him till the last match?Solution
Bowling average = (total runs conceded)/(total wicket taken ) Let the total number of wickets be x Then, bowling average = 15 Runs conceded = 15 x Now, (15 x + 30)/(x + 5)= 13.5 15x + 30 = 13.5 (x + 5) 15 x + 30 = 13.5 x + 67.5 1.5 x = 67.5 – 30 x = 37.5/1.5 = 25
Given below an equation having four blanks you have to check from the alternatives which among the given is correct?
21 _ 51 _ 7 _ 12 _ 75
After interchanging the given two signs, what will be the value of the given equation?
X and –
64 + 15 ÷ 90 - 120 X 17
Select the correct combination of mathematical signs that can sequentially replace the “@” sign and balance the following equation.
16@5@4@2@...
If the ‘-’ and ‘×’ are interchanged, What will be the value of the following equation?
34 × 22 + 192 ÷ 12 – 8
...Which among the given operators should replace the “%” (in the same order) in the given expression below:
5 % 10 % 5 % 36 % 15 % 6
What will be the value of expression if the numbers/digits ‘(30)’ and ‘(13)’ are interchanged?
78 ÷ 30 × 6 + 13 - 14 + 12
...Select the correct combination of mathematical signs that can sequentially replace the sign * and make the equation correct.
3 * 12 * 4 * 5 * 4 * 116
Out of the total number of players, 100/3 % are in hotel X and the remaining are in hotel Y. If 20 players from hotel Y are shifted to hotel X, then the...
Which two signs need to be interchanged to make the following equation correct?
75 – 18 × 80 ÷ 16 + 40 = 125
Select the correct combination of the mathematical signs to replace the ‘@’ symbols in the below equation and thereby balance it:
81@9@5@30@1...
Relevant for Exams:
