- P is 25% more efficient than Q and he completes a task in 36 days. If R alone complete the same task in 30 days, then find all three together can complete the same task in how many days ?
15 days18 days8 days14 days12 daysOption E

Ratio of efficiency of A and B = 5 : 4

total work = 36 * 5 = 180

efficiency of C = 180/30 = 6

required time = 180/5 + 4 + 6 = 12 days - A shopkeeper marked up an article 60% above cost price and sell it at rs.960 after allowing discount of 25%. If profit of shopkeeper is rs.160, then find the marked price of article ?
14201200114015401280Option E

Let CP of article = 100x

MP of article = 160x

CP = 960 – 160 = 800

100x = 800

x = 8

MP of article = 160 * 8 = 1280 - Average of serious of six consecutive even numbers is 25, find the sum of second and fourth number of serious.
4335244856Option D

Let series be x, x + 2 , x + 4, x + 6, x + 8, x + 10

6x + 30/6 = 25

x = 20

2nd and 4th number = (20 + 2 = 22), ( 20 + 6 = 26)

sum = 48 - Ratio of investment of A, B and C is 4 : 6 : 9 respectively. At the end of a year, ratio of profit share of A, B and C is 4 : 5 : 6 respectively. If A has invested for a year then find the sum of period of investment of B and C ?
20 months18 months14 months24 months28 monthsOption B

Let investment of A, B and C = 4x, 6x and 9x respectively

period of investment of B and C = a and b months respectively.

ratio of profit share ,

A : B : C = 4x * 12 : 6x * a : 9x * b

4x * 12/6x * a = 4/5

a = 10 months

4x * 12/9x * b = 4/6

b = 8 months

required sum = 10 + 8 = 18 months - Ratio between income and expenditure of Sujit increased by 20% and 33.33% in two successive years and expenditure remains same, then his saving is increased by rs.18000. What is his new income ?
4500038000650003200048000Option E

Income and expenditure of Sujit 15x and 6x respectively.

saving = 15x – 6x = 9x

new income = 15x * 6/5 * 4/5 = 24x

24x – 6x = 9x + 18000

x = 2000

new income = 24 * 2000 = 48000 - Directions : What will come in place of questions (?) marks in the following number series ?

36, 18, ?, 27, 54, 1351219201822Option D

The series is, (* .5), (* 1), (* 1.5), (* 2), (* 2.5) - 26, 170, 366, 622, ? 1346
834946870650820Option B

The series is, (+ 12)^2, (+ 14)^2, (+ 16)^2, (+ 18)^2, (+ 20)^2 - 10, 11, 15, 24, ? 65
4530384045Option D

The series is, (+ 1)^2, (+ 2)^2, (+ 3)^2, (+ 4)^2, (+ 5)^2, - 8, 16, 43, 168, 511, ?
14521234102018422024Option D

The series is, (+ 2)^3, (+ 3)^3, (+ 5)^3, (+ 7)^3, (+ 11)^3, - 2, 5, 12, 27, 58, ?
124240234121320Option D

The series is, (* 2 + 1), (* 2 + 2), (* 2 + 3), (* 2 + 4), (* 2 + 5),