Question

II. Do as directed:
1) Find the simple interest and amount wiwen prancipal - Rs. 1200. rate of ek
and time 4 years.
2) Simplily (3" .3'') x 3
3) Find the circumference of a circle with diameter 35cm
4) Find any s rational numbers between and
5) Find
5
6) Find the area of a triangle whose base and height is 6cm and 4.5cm respectively​

Answer 1

Answer:

(i) Principal (P) = Rs 2000

Rate of interest (R) = 5% p.a.

Time (T) = 5 years

Simple interest = P×R×T100=2000×5×5100=Rs 500

(ii) Principal (P) = Rs 500

Rate of interest (R) = 12.5% p.a.

Time (T) = 4 years

Simple interest = P×R×T100=500×12.5×4100=Rs 250

(iii) Principal (P) = Rs 4500

Rate of interest (R) = 4% p.a.

Time (T) = 6 months

T =612=12 year (1 year = 12 months)

Simple interest = P×R×T100=4500×4×12100=4500×4×1100×2=Rs 90

(iv) Principal (P) = Rs 12000

Rate of interest (R) = 18% p.a.

Time (T) = 4 months =412=13year (1 year = 12 months)

Simple interest = P×R×T100=12000×18×1100×3=Rs 720

(v) Principal (P) = Rs 1000

Rate of interest (R) = 10% p.a.

Time (T) = 73 days = 73365 year (1 year = 365 days)

Simple interest = P×R×T100=1000×10×73100×365=Rs 20