2880, 480, 92, 24, 8, 4, 4
Question: 2880, 480, 92, 24, 8, 4, 4
[A].
480
92
24
8
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
Go on dividing by 6, 5, 4, 3, 2, 1 respectively to obtain the next number.
Clearly, 92 is wrong.
Similar Posts
19, 26, 33, 46, 59, 74, 91
Question:
19, 26, 33, 46, 59, 74, 91
[A].26 [B].
33 [C].
46 [D].
59 Answer: Option B
Explanation:
Go on adding 7, 9, 11, 13, 15, 17 respectively to obtain the next number.
So, 33 is wrong. It must be 35
Find the C.I. on a sum of Rs.1600 for 9 months at 20% per annum, interest being compounded quarterly?
Find the C.I. on a sum of Rs.1600 for 9 months at 20% per annum, interest being compounded quarterly?A. Rs.17684
B. Rs.1684
C. Rs.2522
D. Rs.3408
Explanation:
A = 1600(21/20)3 = 2522If the interest is payable annually than the principal on which the compound interest for 3 years at 10% P.a is Rs 33/- is given by:__________?
If the interest is payable annually than the principal on which the compound interest for 3 years at 10% P.a is Rs 33/- is given by:__________?A. Rs 900
B. Rs 1000
C. Rs 1050
D. Rs 1100
Explanation:
Let the principal be Rs x.
Then X × (1 + 10/100)3 – x = 331
=> (x × 11/10 × 11/10 × 11/10 – x) = 331
=> ((1331x-1000x)/1000) = 331
=> 331x = 331000
=> X = 1000
Hence the principal is Rs 1000The largest 5 digit number exactly divisible by 91 is:
Question:
The largest 5 digit number exactly divisible by 91 is:
[A].99921 [B].
99918 [C].
99981 [D].
99971 Answer: Option B
Explanation:
Largest 5-digit number = 99999
91) 99999 (1098
91
—
899
819
—-
809
728
—
81
—Required number = (99999 – 81)
= 99918.Ayesha’s father was 38 years of age when she was born while her mother was 36 years old when her brother four years younger to her was born. What is the difference between the ages of her parents?
Question:
Ayesha’s father was 38 years of age when she was born while her mother was 36 years old when her brother four years younger to her was born. What is the difference between the ages of her parents?
[A].2 years [B].
4 years [C].
6 years [D].
8 years Answer: Option C
Explanation:
Mother’s age when Ayesha’s brother was born = 36 years.
Father’s age when Ayesha’s brother was born = (38 + 4) years = 42 years.
Required difference = (42 – 36) years = 6 years.
There are two examinations rooms A and B. If 10 students are sent from A to B, then the number of students in each room is the same. If 20 candidates are sent from B to A, then the number of students in A is double the number of students in B. The number of students in room A is:
Question:
There are two examinations rooms A and B. If 10 students are sent from A to B, then the number of students in each room is the same. If 20 candidates are sent from B to A, then the number of students in A is double the number of students in B. The number of students in room A is:
[A].20 [B].
80 [C].
100 [D].
200 Answer: Option C
Explanation:
Let the number of students in rooms A and B be x and y respectively.
Then, x – 10 = y + 10 x – y = 20 …. (i)
and x + 20 = 2(y – 20) x – 2y = -60 …. (ii)
Solving (i) and (ii) we get: x = 100 , y = 80.
The required answer A = 100.