(50 – ?/29)% of 4200 = 3√196
(50 – ?/29)% of 4200 = 3√196
A. 1350
B. 1450
C. 1550
D. 1421
Explanation:
(50 – ?/29)% of 4200 = 3√196
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The sides of a cube are in the ratio 1:2 the ratio of their volume is__________?
The sides of a cube are in the ratio 1:2 the ratio of their volume is__________?A. 1:2
B. 1:4
C. 1:8
D. 2:1The length and breadth of a rectangular piece of land are in the ratio of 5:3. The owner spent Rs 3000 for surroundings it from are the sides at Rs 7.50 per meter. The difference between is length and breadth is_________?
The length and breadth of a rectangular piece of land are in the ratio of 5:3. The owner spent Rs 3000 for surroundings it from are the sides at Rs 7.50 per meter. The difference between is length and breadth is_________?A. 50m
B. 100m
C. 150m
D. 200m
Explanation:
Let length = 5x meters and breadth = 3x meters
Perimeter = 2 x (5x + 3x) m = 16x metres.
Perimeter = Total cost/Rate = (3000/7.50) m = 400 m.
16x = 400 or x = 25
(Length) – (breadth) = (5 x 25 – 3 x 25)m
= (2 x 25) = 50 mWhat will be the ratio of simple interest earned by certain amount at the same rate of interest for 6 years and that for 9 years ?
What will be the ratio of simple interest earned by certain amount at the same rate of interest for 6 years and that for 9 years ?A. 1 : 3
B. 1 : 4
C. 2 : 3
D. Data inadequate
Let the principal be P and rate of interest be R%. So Required ratio = [(P x R x 6/100) / (13 x R x 9/100)] = 6PR/9PR = 6/9 = 2 : 3The salary of a worker is first increased by 30% and afterwards reduced by 30%. What is net change in his salary?
The salary of a worker is first increased by 30% and afterwards reduced by 30%. What is net change in his salary?A. 90% increase
B. 45% increase
C. 9% decrease
D. Same as before
Explanation:
(30 * 30)/100 = 9% decrease58978 / 363.94 * 11.02 = _______?
58978 / 363.94 * 11.02 = _______?A. 1580
B. 1680
C. 1780
D. 1880
Explanation:
59000 / 364 * 11 = ?
=> ? = 162 * 11 = 1782 = 1780A sum was put at simple interest at a certain rate for 3 years. Had it been put at 2% higher rate, it would have fetched Rs 360 more. Find the sum.
A sum was put at simple interest at a certain rate for 3 years. Had it been put at 2% higher rate, it would have fetched Rs 360 more. Find the sum.A. Rs.4000
B. Rs.9000
C. Rs.5000
D. Rs.6000
Let sum = P and original rate = R. Then
[(P * (R+2) * 3)/100] – [ (P * R * 3)/100] = 360
3P*(R+2) – 3PR = 36000
3PR + 6P – 3PR = 36000
6P = 36000
P = 6000