Related Questions

Think a number and then double the number. Then add 8 and multiply the result by 6. Now divide the result by 12, then subtract the number you first thought out. What u the final result?
A 4
B 6
C 10
D 14
A figure was reached by first multiplying a number by 4 and then dividing the product by 100. The figure can be obtained by dividing the original number by
A 0.04
B 0.25
C 0.40
D 2.5
If doubling a number and adding 20 to the result gives the same answer as multiplying the number by 8 and taking away 4 from the product, the number is :
A 2
B 3
C 4
D 6
L is older than M and taller than N. O is younger than P, older than N and shorter than Q. R is older than S, younger than N, shorter than S and taller than Q. S is older than L, M, O, P, Q, R and S is necessarily false?
A O is the shortest of the group.
B N is the second tallest of the group.
C L is the tallest of the group.
D Q is the third oldest of the group.
The average marks obtained by a group of 16 students was 20. One student left the group as a result of which the average of the remaining students rose to 21. But another student joined, as a result of which the average marks of the group dropped a bit and became 20.5. What was the average marks obtained by the student who left and the one who joined?
A 10
B 11
C 8
D 9
Think a number and then double the number. Then add 8 and multiply the result by 6. Now divide the result by 10 the subtract the number you first thought out. what is the final result?
A 4
B 6
C 10
D 14
Think of a number and then double the number Add 6 and multiply the result by 10. Now divide the result by 20 , then subtract the number you first thought out. What is the result?
A 2
B 3
C 4
D 5
The endurance limit in shear of carbon steel can be obtained by multiplying the endurance limit in flexure by a factor of
A 0.45
B 0.55
C 0.65
D 0.75
The equation which is obtained by multiplying each equation by the coefficient of its unknowns and by adding the equations thus formed, is known as
A Observation equation
B Conditional equation
C Normal equation
D None of these
The total number obtained by a student in Physics, Chemistry and Mathematics together is 120 more than the marks obtained by him in Chemistry. What is the average mark obtained by him in Physics and Mathematics together?
A 40
B 60
C 120
D Cannot be determined

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