A. (36,60)
B. (12,180)
C. (96,25)
D. (72,30)
A. 2:3:5
B. 3:4:7
C. 4:5:9
D. None of these
Explanation:
A:B:C = (40000 * 36) : (80000 * 12 + 40000 * 24) : (120000 * 24 + 40000 * 12)
= 144:192:336 = 3:4:7
A. 6%
B. 5%
C. 7%
D. 8%
1. To find the interest, subtract the principal from the balance.
$618 – $600 = $18
2.Use the simple interest formula and solve for r.
I = Prt
18= 600 x r x (1/2)
r= 0.06 =6%
A. 3
B. 4
C. 5
D. 6
Explanation:
C.P. of 6 toffees = Re. 1
S.P. of 6 toffees = 120% of Re. 1 = Rs. 6/5
For Rs. 6/5, toffees sold = 6. For re. 1.
Toffees sold = 6 * 5/6 = 5
A. neither profit nor loss
B. 1%
C. 2%
D. 3%
Explanation:
Profit on first article = 20% of 1000 = 200.
This is equal to the loss he makes on the second article. That, is he makes neither profit nor loss.
A. 5%
B. 8%
C. 12%
D. 15%
S.I. for 3 years = Rs. (12005 – 9800) = Rs. 2205.
S.I. for 5 years = Rs.[ (2205/3) x 5 ] = Rs.3675
Principle = Rs.(9800-3675) = Rs.6125
Rate=12%
A. 125
B. 134
C. 170
D. 98
Sum of the 35 numbers = 35 * 25 = 875
If each number is multiplied by 5, the sum also gets multiplied by 5 and the average also gets multiplied by 5.
Thus, the new average = 25 * 5 = 125