15 cattle can graze a field in 20 days 20 cattle can graze 3 such field in how many days?
15 cattle can graze a field in 20 days 20 cattle can graze 3 such field in how many days?
A. 30
B. 45
C. 60
D. 50
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If the length, breadth and the height of a cuboid are in the ratio 6: 5: 4 and if the total surface area is 33300 cm2, then length breadth and height in cms, are respectively?
If the length, breadth and the height of a cuboid are in the ratio 6: 5: 4 and if the total surface area is 33300 cm2, then length breadth and height in cms, are respectively?A. 90, 85, 60
B. 85, 75, 60
C. 90, 75, 70
D. 90, 75,60
Explanation:
Length = 6x
Breadth = 5x
Height = 4x in cm
Therefore, 2(6x × 5x + 5x × 4x + 6x × 4x) = 33300
148×2 = 33300
=> x2 = 33300/148 = 225
=> x = 15.
Therefore, Length = 90cm,
Breadth = 75cm,
Height = 60cm
90, 75 , 60 cmWhat is the ratio between perimeters of two squares one having 3 times the diagonal then the other?
What is the ratio between perimeters of two squares one having 3 times the diagonal then the other?A. 4:8
B. 1:4
C. 6:2
D. 3:1A trader marked the selling price of an article at 10% above the cost price. At the time of selling, he allows certain discount and suffers a loss of 1%. He allowed a discount of :
A trader marked the selling price of an article at 10% above the cost price. At the time of selling, he allows certain discount and suffers a loss of 1%. He allowed a discount of :A. 10 %
B. 10.5 %
C. 11 %
D. 12.5 %Find the greatest number of four digits which when divided by 10, 15, 21 and 28 leaves 4, 9, 15 and 22 as remainders respectively?
Find the greatest number of four digits which when divided by 10, 15, 21 and 28 leaves 4, 9, 15 and 22 as remainders respectively?A. 9654
B. 9666
C. 9664
D. 9864What will be the least number which when doubled will be exactly divisible by 12, 18, 21 and 30?
What will be the least number which when doubled will be exactly divisible by 12, 18, 21 and 30?A. 196
B. 630
C. 1260
D. 2520
Explanation:
L.C.M of 12, 18, 21, 30
= 2 * 3 * 2 * 3 * 7 * 5 = 1260
Required number = 1260/2 = 630.In what proportion must water be added to spirit to gain 20% by selling it at the cost price?
In what proportion must water be added to spirit to gain 20% by selling it at the cost price?A. 2:5
B. 1:5
C. 3:5
D. 4:5