Question
P can complete a job in 30 days. Q alone can complete
the same job in 20 days. P works for 18 days and then the remaining job is completed by Q. How many days will it take for Q to complete the remaining job alone?Solution
P’s 1 day work = 1/30 P’s 18 day work = 18/30 = 3/5 days,Remaininng work = 1 - 3/5 = 2/5 Q’s 1 day work = 1/20 days, Q’s 2/5 day work = 1/20 × 5/2 = 1/8 Q will complete the remaining job alone in 8 days.
√3598 × √(230 ) ÷ √102= ?
Simplify the following expressions and choose the correct option.
45% of 640 + (2/5 of 350) = ?
√225 + 27 × 10 + ? = 320
32 X 25 ÷ 4 + 12 of 30 = ? X 5 - 30Â
1440 ÷ 12 + 540 ÷ √36 + ? = 180 * 3
4567.89 - 567.89 - 678.89 = ?
- What will come in place of the question mark (?) in the following questions?
18×4+96÷8=? ((12+12+12+12)÷4)/((8+8+8+8+8+8)÷16) = ?
9999² + 1111² =?
- What will come in the place of question mark (?) in the given expression?
(120 - ?) ÷ 2 + 35 = 86 - 11