Related Questions

Nickel percentage in invar which is an iron-nickel alloy, and is used as a thermocouple material is
A 12
B 36
C 54
D 68
Invar tapes used for measuring base lines, is made of nickel-iron alloy containing nickel
A 24 %
B 36 %
C 40 %
D 60 %
John, twelve years old, is three times as old as his brother. How old will John be when he is twice as old as his brother?
A 15
B 16
C 18
D 20
12 year old Manick is three times as old as his brother Rahul. How old will Manick be when he is twice as old as Rahul?
A 14 years
B 16 years
C 18 years
D 20 years
Arif is 4 times as old as Bobby,in 6 years, Bobby will be twice as old as Sara. Four years from now Arif will be 36 years old,how old will Sara be in 5 years?
A None
Mary, who is sixteen years old, is four times as old as her brother , How old will Mary be when she is twice as old as her brother?
A 20
B 24
C 25
D 26
A father is three time old as old as his son. After fifteen years the will be twice as old as his sons age at that time. Hence the fathers present age-
A 36
B 42
C 45
D 48
Two years ago, Tim was three times as old as susie . Today he is twice as old as susie. How old is Tim today?
A 2
B 4
C 6
D 8
Six years ago, Rahim was P times as old as Kalam was. If Rahim is now 17 years old, how old is Kalam now in terms of P?
A 11/P+6
B P/11+6
C 17-P/6
D 17/P
Raina is twice as old as Saima. Three years ago, Raina was three times as old as Saima. How old is Raina now ?
A 6 Years
B 12 Years
C 14 Years
D 16 Years

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