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As sides 7, 24 & 25 is a Pythagoras triplet means 72 + 242 = 252 ; this is a right angle triangle. So area of this triangle = 1/2 × base × height = (1/2) × 7 × 24 = 84 cm 2
Average marks scored by Vineet in five subjects are 70. The average marks scored by him (excluding his highest and lowest marks) are 50 and lowest marks...
An English-based company has 625 men and 625 female employees in a collaborative project. The average attendance of all employees is 74 calls per day. O...
Average 20 numbers is ‘x’. If the average of first 12 numbers is 64.5 while average of last 5 numbers is 84.8 and 13th, 14th...
The average of n numbers is 62. If each of 55% of the numbers is increased by 18 and each of the remaining numbers is decreased by 12, then the n...
The average mark obtained by 110 candidates in a certain examination is 45. If the average marks of passed candidates are 50 and that of the failed cand...
The mean of 50 observations was calculated as 75. It was later found that one of the observations was misread as 173 instead of 113. The correct mean is...
Virat Kohli's strike rate after facing 'b' balls is 120. In the subsequent 15 balls, he scores an additional 39 runs, leading to ...
The average age of three children in a family is 35% of the average of the age of father and the eldest child. The total age of the mother and the young...
Average of 22 numbers is 58. If the average of the first eight and last seven numbers is 65.5 and 48.5 respectively, and if the eleventh number is 35% m...
The average of five even numbers is 66. If we replace two of these even numbers, 84 and 92, with a single even number X, the new average decreases by 4....
