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1.

The average weight of 8 persons increases by 3.5 kg when a new person comes in place of one of them weighing 60 kg.

Answer»

The average weight of 8 persons increases by 3.5 kg when a new person comes in place of ONE of them weighing 60 kg.
What might be the weight of the new person?
Choose the Correct OPTION from Below list
(1)67 kg
(2)63.5 kg
(3)88 kg
(4)DATA inadequate
(5)None of these

Answer:-(3)88 kg
Note:-Weight increased = (8 x 3.5) kg = 28 kg.

Weight of new person = (60 + 28) kg = 88 kg.
Discussion
2.

What is the difference in the place value of 5 in the numeral 859054?

Answer»

What is the difference in the PLACE VALUE of 5 in the numeral 859054?
Choose the correct option from below list
(1)49500
(2)49950
(3)45000
(4)49940

Answer:-(2)49950
Note:-digit 5 has two place values in the numeral, 5 * 10000 = 50,000 and 5 * 10 = 50.
Required difference = 50000 - 50 = 49950
Discussion
3.

What is the average of first five multiples of 12?

Answer»

What is the average of FIRST five multiples of 12?
Choose the CORRECT option from below LIST
(1)36
(2)38
(3)40
(4)42

Answer:-(1)36
Note:-Average = 12*(1+2+3+4+5) * 1/15
= 12 * 15* 1/5
= 12 * 3= 36
Discussion