Question

14. Add: 3x²y2 - 4xy + 5, - 10xy? 25+ 8xy + 7x?y?
15. Find the value of [(22)3 2] + 2?
16. Manohar borrowed 10000 from ABC finance with an interest rate of 10% p.a.
amount to be paid after 2 years.
Questions 17 - 26 carry 2marks each.
17. Express the following as the product of powers of their prime factors:
(a) 1400
(b) 108 x 192
18. A triangular garden has base 30m and height 32m. Find the cost of levelling
at 6 per m
m?
19.
Convert (a) 60% as decimal
(b) 0.05 as percentage
20. The cost of a flower vase is 240. If the shopkeeper sells it at a loss of 10%
selling price of flower vase.
21. What is the error?
Chinmaya simplified a rational number in this manner
What error did the student make?
-25
-30​

Answer 1

Step-by-step explanation:

17. b.108×192

(100+8)(100+92)