Question

ASSIGNMENT-2
Q.1. If the marks of Rohit in a test increased from 20 to 30, find the percentage
increase
Q.2. If the price of a shirt decreased from Rs.80 to Rs.60, find the percentage decrease.
Q.3. Cost of an item is Rs.50, it was sold with the profit of 12%, find the selling price of
the item.
Q.4. A shopkeeper bought a table for Rs. 375 and sold it for Rs. 400, find his gain or
loss percent.
Q.5. An item was sold for Rs.540 at a loss off 5%, what was its cost price?
Q.6. If Rita borrowed Rs.6050 at 6.5% rate of interest per annum, find the simple
interest and the amount to be paid at the end of 3 years.
Q.7. If you have Rs. 2400 in your account and the interest rate is 5% after hwo many
years would you earn Rs.240 as interest?
Per le starter mio mar
5% rat
Combor telt erine
Q.8. On a certain sum the simple interest paid after 3 years is Rs. 450 at 5% rate of
interest per annum. Find the sum
ASSIGNMENT-3
1. Express each of the following numbers as a product of powers of their prime
factors.
a) 36
b) 72
c) 128
d) 625
e) 343
f) 540
g) 512
h) 729
2. Simplify.
a) 2 x 103
b) 72 x 2
c) 33 x 42
d) 52 x 23
e) 3 x 24
f) 112 x 0
g) 24 x 32
h) 152 x 0
i) (-3) (-4)2
j) 62 x 33
k) (-2)4 x (-10)
1) (-3)2 x (-2)4
m) 28 x 0
n) (-7)3 x 2​

Answer 1

Answer:

Why you gave such a long question