Maths Quiz Test Of 26th December

Two pipes A and B can fill a tank in 3 hours and 5 hours. Then, if all three are open, the tank is filled in 30 hours. Find in how many hours a third pipe will empty the tank?

(A) 4 hours

(B) 2 hours

(C) 8 hours

(D) 6 hours

A boat running upstream takes 7 hours and 40 minutes to cover a certain distance while it takes 5 hours to cover the same distance downstream. What is the ratio between the speed of the current and speed of the boat respectively? 

(A) 13: 4

(B) 17: 4

(C) 19: 4

(D) 4: 19

If the square root of 841 is 29, then 0.00000841 is equal to :

(A) 0.00029

(B) 0.29

(C) 0.029

(D) 0.0029

12 kg of rice costing 30 per kg is mixed with 8 kg of rice costing 40 per kg. The average per kg price of mixed rice is

(A) 35

(B) 34

(C) 38

(D) 37

Gagan started a business and Michael joined him after 2 months. Gagan spent Rs.15000 while Michael spent Rs.27,000. Their one year profit came out to Rs.5000. How much profit will Gagan get?

(A) 3000

(B) 2000

(C) 1500

(D) 2750

A man can swim at the rate of 3 km/hr. in still water. Then, if speed of the stream is 2 km/hr., then in what time he will cover a total distance of 5 km in with the stream and against the stream?

(A) 6 hours

(B) 6.5 hours

(C) 4 hours

(D) 5 hours

The sum of the squares of 3 consecutive positive numbers is 365. The sum of the numbers is

(A) 36

(B) 45

(C) 30

(D) 33

A sum of Rs.10600 is divided among P, Q, R in such a way that P gets Rs.1400 more than what Q gets and Q gets Rs.1600 more than what R gets. The ratio of their shares is

(A) 16: 9: 18

(B) 27: 18: 10

(C) 18: 25: 10

(D) 16: 25: 10

If the numerator of a fraction is increased by 250% and the denominator is increased by 400%. The resultant fraction is7/19 . What is the original fraction?

(A) 5/8

(B) 10/19

(C) 18/23

(D) 15/17

LCM of two numbers is 2079 and their HCF is 27. If one of the numbers is 189, the other number is

(A) 297

(B) 584

(C) 189

(D) 216