SSC CPO 11th Dec 2019 Shift-2
For the following questions answer them individually
The average of n observations is 40. If one observation of value 80 is added, then the average of all the observations is 41. What is the value of n?
Pipes A and B can fill a tank in 36 hours and 48 hours, respectively. Both pipes are opened together for 9 hours and then A is closed. Pipe B alone will fill the remaining part of the tank now in:
The total numbers of males and females in a town is 70,000. If the numberof males is increased by 6% and that of the females is increased by 4%, then the total numbers of males and females in the town would become 73520. Whatis the difference between the numberof males and females in the town, in the beginning?
When a certain number is divided by 65, the remainder is 56. When the same numberis divided by 13, the remainder is x . What is the value of $$\sqrt{5x - 2}$$?
In $$\triangle ABC, \angle = 90^\circ, AB = 16 cm$$ and $$AC = 12 cm$$. D is the midpoint of AC and $$DE \perp CB$$ at E. What is the area (in cm$$^2$$) of $$\triangle$$CDE?
A sum (in ₹) is distributed between A, B and in the ratio 9 : 6: 11. If A gives ₹500 from his share to C, the ratio of shares of A, B and C becomes 4 : 3 : 6. What is the sum ofshares(in ₹) of B and C, in the beginning?
Study the pie chart and answer the question.
Distribution (degree wise) of the number of computers sold by a shopkeeper during five months.
The total number of computers sold in February and April is what percentage more than the number of computers sold in May? (Your answer should be correct to one decimal place.)
A person takes 40 minutes more than his usual time when he covers a distance of 20 km at 5 km/h.If he covers the same distance at 8 km/h, he takes x minutes less than the usual time. Whatis the value of x ?
An article is marked at 100% above its cost price. After allowing two successive discounts of 5% and 20% respectively on the marked price, it is sold at x% profit. What is the value of x?
Study the bar graph and answer the question.
The number of neon lamps having a life of 500 hours or more but less than 800 hours is:
