The average of 20 numbers is zero of them at the most, how many may be greater than zero?
1
10
19
20
If a - b = 3 and a^2 + b^2 = 2 the ab = ?
11
-7
-7/2
none
Ali runs for 480 meters at the speed of 4 meters per second, He gets tried and rests for 10 minutes/ he runs again 300 meters at a speed of 5 meters per second and finishes. How many minutes did he take to finish the marathon?
13
15
16
none
If the radius of the circle increased 4 times, then its area increased should be?
8 times
12 times
16 times
none of these
What is 2^2 x 3^3 x 2^-5 x 3^-2 x 2^2 is:
equilateral
acute scalene
right-angled isosceles
none
In 2021, the cost of a ticket to a cricket match was Rs.600. This was 20% more than the ticket cost in 2020. What was the cst of the ticket in 2020?
Rs. 450
Rs. 480
Rs. 510
None
The sum given by 1.2 x 10^48 + 1.2 x 10^41 is ___?
1.2 x 10^81
2.4 x 10^81
13.2 x 10
None
A train 140m long is travelling at 144km/h. It crosses under a 20m wide bridge. How much time in seconds will be taken by the whole train to cross the bridge?
3.5 second
4 second
6.6 second
none
Which of the following are SYNONYMS for the word ELECT?