Question
Sam and John can complete a piece of work in 8 days and
12 days respectively. They work together but after 2 days, Sam leaves. John finishes the remaining work alone. Find out the fraction of the work done by John.Solution
ATQ, Let the total amount of work be 24units (LCM of 8 and 12) Efficiency of Sam = 24/8 = 3 units/day Efficiency of John = 24/12 = 2 units/day Work done together in 2 days = (3+2) × 2 = 10 units Remaining work = 24-10 = 14 units, completed by John alone. Units of work done by John = 14+(2×2) = 14 +4 = 18 units Part of work done by John = 18/24 = 3/4
263 + 1152 - ? + 577 = 1333
√? = 32% of 900 + 48% of 50
What will come in the place of question mark (?) in the given expression?
?2 = 3945 ÷ 5 + 774 ÷ 6 – 77
If 1.123 × 3.211 = 3.122 + ______________, then the number in blank space is
Simplify the following expression:-
?2 = (1035 ÷ 23) × (1080 ÷ 24)
What will come in place of the question mark (?) in the following expression?
Simplify: 0.004 × 0.5
What will come in the place of question mark (?) in the given expression?
(? ÷ 16) = (20 ÷ ?) X 20Find the value of 45 - 3 x (4 of 6 + 12 ÷ 3 × 6 – 4 × 5) + 6.
