Answer the following question: (any six) [12]
17) Simplify and find the value of (-1)13 x 26
x 23
18) Add : – 7xy -3y2
+2×2
and 3×2
-4y2
– 6xy.
19) Find the perimeter of square park whose area is 900 cm2
.
20) Find the simple interest for Rs. 7500 at 6% for 2 years .
21) find : – –
22) Out of 50 students 24 like to play football what percent of the students like to play football .
23) Find the area of circle having circumference is 44 cm.
Answer:
20. simple interest =7500×6×2÷100
=900
therefore the simple interest is 900 rupees