1.THE COST OF 7 BOOKS IS 256 THEN WHAT IS THE COST OF 12 BOOKS
2.find the amount to be returned if the principle is 20,000 for 2 years at the rate of 5 % p.a ( per annum )
plz answer fastly and correctly i will mark you as a brainelest.
Answers
Question:
The cost of 7 books is Rs. 256. Then what is the cost of 12 books?
Answe:
Rs. 439
Step-by-step explanation:
The cost of 7 books = Rs. 256
Cost of 1 book = 256/7
As per given statement, we need to find out the cot of 12 books. So,
Cost of 12 books = 256/7 × 12
= Rs. 438.85
= Rs. 439 (approx.)
Therefore, the cost of 12 books is Rs. 439 (approx.).
Question:
Find the amount to be returned if the principal is 20,000 for 2 years at the rate of 5 % p.a ( per annum ).
Answer:
Rs. 22050
Step-by-step explanation:
As per given question, principal is 20000, time is 2 years and rate is 5% p.a. We need to find out the amount.
Now,
Amount = Principal (1 + Rate/100)^Time
Substitute the values,
→ A = 20000 (1 + 5/100)²
→ A = 20000 (105/100)²
→ A = 20000 (11025/10000)
→ A = 2(11025)
→ A = 22050
Therefore, the amount is Rs. 22050.