A reduction of 20% in the price of mangoes enables a person to purchase 12 more for Rs. 15. What was the price of 16 mangoes before reduction of price?
Rs. 6
Rs. 5
Rs. 7
Rs. 9
Answer: Option B.
The average age of a man and his son is 28 years. The ratio of their ages is 3 :1 respectively. What is the man's age?
30 years
38 years
44 years
42 years
Answer: Option D.
Total sum of man's age & his son's age =28 × 2 = 56 Now, the Ratio of their ages is 3 : 1.Therefore, Man's age = (3/4) × 56 = 42
So, the correct answer is option D.
A cyclic quadrilateral ABCD is such that AB = BC, AD = DC, AC is perpendicular to BD and ∠CAD = θ, then find the ∠ABC.
How many integers are there between 300 and 600 that are divisible by 9?
33
31
28
25
Answer: Option A.
The sequence is 306… 594
594=306+ (n-1)9⇒288= (n-1)9⇒n=33
10. What will be the ratio of petrol and kerosene in the final solution formed by mixing petrol and kerosene that are present in three identical vessels in the ratio 4:1,5:2 and 6:1 respectively?
166 : 22
83 : 22
83 : 44
78 : 55
None of these
Answer: Option B.
Three identical vessels in the ratio 4:1, 5:2 and 6 :1 respectively.
Petrol : kerosene
(4 : 1 = 5)7
(5 : 2 = 7)5
(6 : 1 = 7)5
28 : 7 = 35
25 : 10 = 35
30 : 5 = 35
83 : 22