Problem 1 :
Find which is more 12% of 60 or 18% of 90 ?
Problem 2 :
Find :
a) CP = Rs 4100 P = Rs 300 SP = ? |
b) SP = 4900 L = 490 CP = ? |
Problem 3 :
Find :
a) P = Rs 6000 SI = Rs 250 A = ? |
b) SI = 500 A = 4900 P = ? |
Problem 4 :
Find :
a) Total = 300 Average = 30 No. of item = ? |
b) No. of item = 21 Average = 21 Total = ? |
Problem 5 :
Find the diameter of a circle whose radius is 6.5 cm.
Problem 6 :
Compute the answer :
Solve : a) Time = 3 years I = $600 R = 4% p.a P = ? |
b) P = $ 2100 I = $350 T = 2 years R = ? |
Problem 7 :
Find the HCF using prime factor method 144, 180 and 192.
Solve the following :
Problem 8 :
75 people travel in a bus, 15 were left standing, what percent of the people were seated.
Problem 9 :
Find the required :
a) P = Rs 6000 I = Rs 900 T = 7 years R = ?
b) P = Rs 3200 I = Rs 160 R = 2% p.a. T = ?
Problem 10 :
Rajive bought pencils for Rs 150, As the were of bad quality, he had to sell them for Rs 127, Find his loss or gain ?
Solutions
1. Answer
12% of 60 :
= 0.12 × 60
= 7.2
18% of 90 :
= 0.18 × 90
= 16.2
7.2 < 16.2
Hence, 12% of 60 is lesser than 18% of 90.
2. Answer
a)
Given, CP = Rs 4100
P = Rs 300
SP = ?
Selling price = Cost price + Profit
= 4100 + 300
Selling price = 4400
b)
Given, Selling price = 4900
Loss = 490
Loss = Cost price - Selling price
490 = Cost price - 4900
Cost price = 490 + 4900
Cost price = 5390
3. Answer
a)
Given, P = Rs 6000
SI = Rs 250
Amount = Principal + Simple interest
= 6000 + 250
Amount = 6250
b)
SI = 500
A = 4900
Amount = Principal + Simple interest
4900 = Principal + 500
Principal = 4900 - 500
Principal = 4400
4. Answer
a)
Given, Total = 300
Average = 30
No. of item = 10
b)
Given, No. of item = 21
Average = 21
Total = 21 × 21
Total = 441
5. Answer
Given, r = 6.5 cm
To find diameter of a circle :
Diameter (d) = 2r
= 2(6.5)
Diameter (d) = 13 cm
6. Answer
a)
Given, Time = 3 years
I = Rs. 600
R = 4% p.a
P = 200 × 25
P = 5000
b)
Given, P = Rs 2100
I = Rs 350
T = 2 years
R = 8.33 % p.a
7. Answer
144 = 2 × 2 × 2 × 2 × 3 × 3
180 = 2 × 2 × 5 × 3 × 3
192 = 2 × 2 × 2 × 2 × 2 × 2 × 3
Common prime factors are 2 × 2 × 3.
HCF of 144, 180 and 192 is 12.
8. Answer
Total number of people = 75
People standing = 15
People seated = 75 - 15
= 60
Percentage of people seated = 60/75 ×100
= 80%
9. Answer
a) Borrowed amount = Rs. 6000
Time = 7 years
Interest = 900
S.I = (P × R × T)/100
Where, S.I = Simple Interest
P = Principal
T = Time
b) Borrowed amount = Rs. 3200
Time = ?
Interest = 160
Rate = 2%
S.I = (P × R × T)/100
Where, S.I = Simple Interest
P = Principal
T = Time
10. Answer
Rajive bought pencils for Rs 150.
Selling price = 127
Profit = Cost price - Selling price
= 150 - 127
Profit = 23
So, profit is loss.
May 21, 24 08:51 PM
May 21, 24 08:51 AM
May 20, 24 10:45 PM