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Let total work = 150 units Amount of work done by Red JCB machine in one day = 150/10 = 15 units Amount of work done by Green JCB machine in one day = 150/15 = 10 units Amount of work done by both machine in one day = 15 + 10 = 25 units Time taken by both machines together to complete the work = 150/25 = 6 days So the part of work done by both the machines together in 4 days = 4/6 = 2/3 Hence, option d.
Quantity I. The perimeter of a triangle whose sides are 17 cm, 13 cm and 23 cm.
Quantity II. The perimeter of a square whose diagonal is 19 cm.
What is the rate percent per annum?
Quantity I. Sum of money becomes four times in five years at simple interest.
What is the rate percent per annum?
Quantity I. Sum of money becomes four times in five years at simple interest.
Let 0 < x < 1, Then the correct inequality is
Quantity I. The volume of a cube whose surface area is 216 cm²
Quantity II. The volume of a cuboid whose sides are 8 cm, 9 cm and 13 cm.
...A merchant earned a profit of Rs. 75 on the selling price of a sweater that cost the merchant Rs. 450.
Quantity I. The perimeter of a triangle whose sides are 17 cm, 13 cm and 23 cm.
Quantity II. The perimeter of a square whose diagonal is 19 cm.
