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Frequently Asked self Math Questions and Answer Page 318

(#M40008228) SELF QUESTION Birthday Keep an EYE

How likely is it that 2 out of 5 children have the same birthday?

dhilip (13 years ago)

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(#M40007858) SELF QUESTION aptitude Keep an EYE

if 5+6+4=010530
and 2+4+8=021040
and 3+5+9=021155
and 4+6+7=020954....
then 2+7+5=??????

Pratik Goyal (13 years ago)

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(#M40007857) SELF QUESTION Keep an EYE

haresh went to buy fruits.she bought 1 apple , 3 bananas , 5 oranges and paid 21 rupees.another person bought 7 apple ,5 bananas , 3 oranges and paid 51 rupees.if i want to buy 1 apple, 1 banana , 1 orange then how much i have to pay?
a) 8
b) 9
c) 10
d) data insufficient

Solution

There can be multiple possible rates of apple, banana and orange to satisfy given conditions, But cost of 1 apple, 1 banana , 1 orange will be Rs 9.
1x+3y+5z = 21........(1)
7x+5y+3z = 51........(2)

Adding (1) and (2), we get
8x+8y+8z = 72
8*(x+y+z)=72
x+y+z=9

so option b)..9
This answer is given by DIPIN and is correct answer

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Sagar Patel (13 years ago)

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(#M40007848) SELF QUESTION Confusing Keep an EYE

There are 6 people- V,P,M,D,G,J. They are
Murderer,Victim,Judge,Police,Witness,Hangman.
The Murderer Was later Hanged.

1)M knew both Murderer and the Victim.
2)Judge asked D to Describe the Murder incident.
3) V was Last to see J alive.
4) police Found G at the Murder site.
5) P and V have never met.

Find who is who?

Vignesh (13 years ago)

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(#M40007845) SELF QUESTION Keep an EYE

taxonomy : classification :: ? A. etymology : derivation B. autonomy : authorization C. economy : rationalization D. tautology : justification E. ecology : urbanization Ans. A

niru (13 years ago)

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(#M40007843) SELF QUESTION Keep an EYE

A father is 30 years older than his son, however he will be only thrice as old as the son after 5 years, what is the father's present age ? A. 40 yrs B. 30 yrs C. 50 yrs D. None of the above Ans. A

niru (13 years ago)

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(#M40007841) SELF QUESTION Keep an EYE

if p/q=3/4
then3p+4q=?

Solution

3p+4q = q[3(p/q)+4] = q[3*(3/4)+4] = q[(9/4)+4)] = q(25/4)
or in terms of p it will be 4p/3(25/4) = p(25/3)



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niru (13 years ago)

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(#M40007840) SELF QUESTION Keep an EYE

there are five red shoe and 4 green. if one draw randomly a shoe then what is the probability of getting red

niru (13 years ago)

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(#M40007825) SELF QUESTION Keep an EYE

A alone can do a work in 12 days. A and B together finished work and got rs.54 and rs.18 respectively. In how many days was the work finished?
a) 12
b) 14
c) 9
d) 10
e) 8

Solution

A does the work in 12 days
and A and B together finished work and got rs.54 and rs.18 respectively
so B will do work in 12*3 = 36 days (because he got 1/3 money relative to other)
so one day work = 1/12 + 1/36 = 4/36 = 1/9
so total days required = 9

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Khushboo Porwal (13 years ago)

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(#M40007822) SELF QUESTION maths Keep an EYE

subtraction of square of 2 numbers gives cube of a number and subtration of cube of two numbers give square of 2 numbers?

saranya (13 years ago)

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