Question
20.11 × 6.98 + 21.03 × 6.12 – 37.95 +
92.9 × 5.02 =? What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)Solution
20 x 7 + 21 x 6 – 38 + 93 x 5 =? 140 + 126 – 38 + 465 =? ? = 693
The average cost of three chairs is Rs.16000. The average cost decrease by 20% when one more chair is included. What is the cost price of the 4th
In a class of 50 students, the girls are 76%. The average weight of boys is 62 kg and that of girls is 58 kg. What is the average weight (in kg) of whol...
The average of 18 numbers is 12. If each number is increased by 2, what will be the mean of the new set of numbers?
The average weight of a group of five persons, A, B, C, D, and E is 67 kg. If another person K joins the group then the average weight of the group is d...
- The mean of 60 numbers is 105. Calculate the new mean if all numbers are multiplied by 4.
In 40 matches, Mia had a bowling average of 18.6. She played 3 more matches, took 3 wickets after conceding 162 runs, and her average increased by 1.8. ...
In an office, the average weight of women is 34 kg and the average weight of men is 30 kg. If the number of women is three times the number of men, what...
What is the average of the squares of the first 35 natural numbers?
If the average of two numbers is 20 and the square root of their product is 16, then the difference between the numbers is:
In an examination, the average marks obtained by the students is 40. After correcting the quantitative mistakes, the average of 50 students is reduced t...