Question

1. In how many years will Rs. 900 yield an interest of Rs. 324 at 12% per annum simple
interest?
2. The mean of 100 numbers is 45. The mean of the last 99 numbers is 44. The first
number is
a) 143
b) 141
c) 144
d) 140
3. The ratio of the areas of two circles is 4:25. Then the ratio of their radii is
4. The lengths of two sides of a triangle are 12cm and 15cm. Between what two measures
should the length of the third side fall ?
5. Find the altitude of a triangle whose area is 45 Sq. cm and base is 15cm.
6. If the circumference and the area of circle are numerically equal, then the diameter
is equal to
b)2T
c)2
d) 4​

Answer 1

Step-by-step explanation:

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