Question

iii) How many vertices are in cuboid ?

a) 8 b) 6 c) 12 d) 4

iv) Ranjan buys a toy for RS 75 and sells it for RS 100 his gain percentage is ?

a) 25% b) 20% c) 331

3

% d) 37 1

2

%

v) The compound interest on Rs 5000 at 10% per annum for 2 years is :-

a) 550 b) 1050 c) 950 d) 825​

Answer 1

Answer:

(iii) How many vertices are in cuboid ?

(iii) How many vertices are in cuboid ? -> 12

(iv) Ranjan buys a toy for RS 75 and sells it for RS 100 his gain percentage is ?

-> 75 buy and 100 sell so 75-100=25 so he gain 25%

v) The compound interest on Rs 5000 at 10% per annum for 2 years is :

-> total monthly payment = 5000 + 10%of 5000

we find 10%of 5000

₹ x 100 = 10%

5000

₹ = 10 x 5000

100

₹ = 500

so, total monthly payment = 5000 + 10%of 5000

= 5000 + 500

= 5500 (1 month)

2 years means = 24 month

so, 2 year payment with 10% = 5500 x 24

= 1,32,000 ₹