Bank Clerk Questions

Let the daughter age be 'x'
Therefore, Son age = 5x, Mother age = 25x, Person age = 50x.

Thus we get, x+5x+25x+50x = 81
81x = 81
x = 1

Daughter's age = 1, Son's = 5, Mother's = 25, Person's age = 50.

In VIBGYOR. It has colors ordered from highest to lowest frequency.

              Violet > Indigo > Blue > Green > Yellow > Orange > Red

That says Violet has the highest frequency.

We know, Speed of light = Frequency x Wavelength

=> As frequeny is inversely proportional to wavelength i.e, as frequwncy goes high wavelength goes down.

So, the violet color has the highest frequency.

Using the letters A, L, W

only one meaningful English word can be formed i.e, LAW

No other words can be formed.

India play its 1st One Day International match in cricket against England in the year 1974 in Headingley in Leeds.

Entomology is the science branch of Zoology that studies Insects. 

The kerosene oil sprayed on the water provodes a thin cating and the larvae of the mosquitoes are prevented from coming up to breathe. Thus, they die.
Hence, A is true but R is false.

Wireless transmission can be done via any of the Infrared waves, Radio waves or Microwaves.

Except 142 all are divisible by number '7'.