Exams

let the inner and outer radii be r and R meters
then, 2πr = 352/7

=> r = (352/7) * (7/22) * (1/2) = 8m
2πR = 528/7

=> R= (528/7) * (7/22) * (1/2)= 12m
width of the ring = R-r = 12-8 = 4m

The given sentence means that, at working hours that person is reserved means he is very timid, feel shy or not talkative or won't share his feelings.

Four tenths = 0.4

Five thousandths = 0.005

The average is (0.4 + 0.005)/2 = 0.2025

My father's brother's only sibling is my father. My father's mother is my grandmother. My sister's only brother is myself. So she is my Grandmother.

The answer is letter ‘f’.

1 year = 12 months (February = 1 `f`, comes only once in the spelling of all the months)

1 month = 4 weeks (first, fourth = 2 f’s, comes twice in a month)

1 week = 7 days (first, fourth, fifth = 4 f`s, comes 4 times in a week)

1 day = 24 hours (four, five, fourteen, fifteen, twenty-four= 6 f’s, comes 6 times in a day

capacity of a tank = volume of tank 

= [ (8 x 100) x (6 x 100) x (2.5 x 100) ]/ 1000 litres 

= 120000 litres

Given (49.001)²  = ?

=> =~ 49 x 49

=~ 2401

=~ 2400