A chord of length 39 cm is at a distance of 10.4 cm from the centre of a circle. Find the radius of the circle.
19.5 cm (appr)
22.1 cm (appr)
28.6 cm (appr)
28.6 cm (appr)
The largest number of four digits exactly divisible by 88 is
9988
9944
8888
8888
B.
9944
Largest 4 digit number is 9999
After doing 9999 ÷ 88 we get remainder 55
Hence largest 4 digit number exactly divisible by 88 = 9999 - 55 = 9944.
The average age of the boys in a class is 18 years. The average age of the girls in that class is 12 years. If the ratio of the number of boys and girls in that class is 3 : 2, then the average age of the class is
15.6 years
16.5 years
15 years
15 years
A chord of length 10 cm subtends an angle 120° at the centre of the circle. Distance of the chord from the centre is
5
If the length and breadth of a rectangle are increased by 10% and 8% respectively, then the area of the rectangle increases by
18%
18%