The average of first 10 natural numbers is____________?
A. 5
B. 5.5
C. 6.5
D. 6
Sum of 10 natural no. = 110/2 = 55
Average = 55/10 = 5.5
A. 5
B. 5.5
C. 6.5
D. 6
Sum of 10 natural no. = 110/2 = 55
Average = 55/10 = 5.5
A. 12.9
B. 13.8
C. 15.8
D. 17
Explained by: M. Zeeshan Saleem
Hi Friend !!!
Here is your answer !!!
The odd primes :-
3 , 5 , 7 , 11 , 13 , 17 , 19 , 23 , 29 , 31
Average = 3+5+7+11+13+17+19+23+29+31/10
= 158/10
= 15.8
Hope it helps u ?
Sum of 11 numbers = 11×10.9 = 119.9
Sum of 1st 6 numbers = 6×10.5 = 63
So, sum of last 5 numbers = 119.9-63 = 56.9
And sum of last 6 numbers = 6×11.4 = 68.4
Hence sixth number will be = 68.4-56.9= 11.5
A. 18
B. 22
C. 9
D. 11
A. 4000
B. 4400
C. 5000
D. 5400
A. 2.5
B. 2.0
C. 1.75
D. 1.5
E. 1.25
One moves at 60km/h, so in an hour, he’ll travel 60km
The other moves at 40km/h, so in an hour, he’ll travel 40km
This is towards each other, so, in an hour, we can say that they’ll get 60+40=100km closer.
This means that they get closer at 100km/h
Given that we have the distance of 150km, and the speed of closure at 100kmh, we can now use the equation
S=D/T
Rearrange to find T (times both sides by T)
S x T = D (now divide both sides by S)
T=D/S
Time = 150km divided by 100km/h
Time = 1.5 hours
Or one hour and 30 minutes
Twelve inches equal to how many centimeters?
A. 30.48
B. 29
C. 34.12
D. 24
1 inch is equal to__________?
A. 2.4 cm
B. 2.5 cm
C. 2.54 cm
D. None