HirePro Averages Quiz-1

Answer: 65.90
Total distance traveled = 778 x 2 =1556
Total time taken to travel from Agra City to New Delhi = 778/80 = 9.72
Total time taken to travel from New Delhi to Agra City = 778/56 = 13.89
Total time = (9.72+13.89)=23.61
Avg speed = total distance/ total time
Avg speed = 1556/23.61
Avg speed = 65.90

Answer: 100
Explanation:
Average = total runs / no.of innings = 45
So, total = Average x no.of innings = 45 x 10 = 450.
Now increase in avg = 5runs. So, new avg = 45+5 = 50 runs
Total runs = new avg x new no. of innings = 50 x 11 = 550
Runs made in the 11th inning = 550 - 450 = 100

Ans: 8
Sol:
Let us assume the numbers are x, x+2, x+4, x+6, and x+8.
=> [x + (x + 2) + (x + 4) + (x + 6) + (x + 8)] / 5 = 71
=5x + 20 = 355
=>X= 67

Subtracting the two numbers,
= (67 + 8) – 67
= 8

Answer: 38
Explanation:
Prime numbers between 31 and 46 are:
31, 37, 41, 43
Average of prime numbers between 31 to 46 will be
((31+37+41+43)/4)=152/4=38

Ans: 4895
Sol:
Total sale for 4 months = (1100 + 2200 + 990 + 3300) = 7590
Needed sale = (2497 * 5) – 7590 = 12485 – 7590 = 4895

Answer: Option A
Explanation:
Required run rate =(282-(3.2*10))/40
=250/40
=6.25

Answer: b. 11
Explanation:
Let the number of innings be N.
Since increase in average is by 2 runs (from 64 to 66), runs in each innings would increase by 2 runs
Total increase in runs = 2 x N = 2N
Also, Virat needs to score 22 runs more to increase average.
2N = 22
N = 11 = Number of innings

Answer: Option B
Explanation:
Correct addition= (36 x 30 + 48 - 23) = 1105.
Correct mean=1105/30=36.83

Answer: Option A
Explanation:
Total sale for 4 months = (1200 + 2400 + 1270 + 1300) = 6170
Needed sale = (2500 x 5) – 6170
= Rs. 12500 – 6170
= 6330

Answer: 14
Explanation:
Average of 16 numbers = 9
Thus, total of 16 numbers = 16 * 9 = 144
When 2 is added to every number then total of 16 numbers increases by 16 * 5 = 80
Thus, new total of 16 numbers = 144 + 80 = 224
New average of 16 numbers = 224 / 16 = 14