Q1. find the greatest number that will divide 330, 647 and 829 leaving remainders 15, 17 and 19 respectively
A. 55
B. 35
C. 15
D. 45
Answer : Option 4
Explaination : when we substract 330 -15 =315 , 647 - 17=630 & 829 - 19 = 810. all this 3 number will be divisible by 45
A sum of Rs.5000 is divided into two parts such that the first part is invested at 4% p.a and the second part at 5% p.a. simple interest. The total interest earned from both the investment after one year is Rs.235. find th
A. 1200
B. 1500
C. 1800
D. 1000
Answer : Option 2
Explaination : This is a questions based on simple and compound interest.
Q3. What is the smallest number greater than 1000 that when divided by any one of the numbers 6, 9, 12, 15 & 18 leave a remainder of 3 ?.
A. 1063
B. 1073
C. 1083
D. 1183
Answer : Option 3
Explaination : this is number system problem.
A car manufacturer produces only red and blue models which come out of the final testing area completely at random. What are the odds that 5 consecutive cars of the same colour will come through the test area at a time?
A. 1 in 16
B. 1 in 125
C. 1 in 32
D. 1 in 25
Answer : Option 1
Explaination : Total 5 cars each can have any of the 2 colours, so the total possibilities are 2*2*2*2*2= 32. The Favourable outcome is the same colour for all the 5 cars = 2 (all 5 are red or all 5 are blue.) Hence the probability = 2