If 2 ^6-4=48 and 2 ^8-5=224 then 2 ^10-6 = A. 360 B.720 C.880 d.960 Please Help !

Suggestion Board Post your query related to m4maths

If you have any query and suggestion you can submit it here.

Name
Email (will not be published)
Comment

Sahil 9 years AGO

If 2 ^6-4=48 and 2 ^8-5=224 then 2 ^10-6 =

A. 360 B.720 C.880 d.960

Please Help !

Like? Yes (2) | No

Reply

sumit 9 years ago

2^6-2^4, 2^8-2^5 similarly 2^10-2^6=960

Like? Yes (1) | No

Other Recommended suggestion

Ritika saxena 9 years AGO

There are some 20 Basketball players & 30 Football players, and 25 cricket players. 1 of them plays all the three games. 8 of them plays atleast two games. They are 50 altogether. How many of them plays none of the games.

Like? Yes (33) | No (5)

Reply

sangeethatamilselvan 6 years ago

Ans: 2
Using Venn diagram we can solve this
to find football player,
B=20-1-8
B=11
Football=30-1-8
F=21
Cricket=25-1-8
C=16
Adding altogether we get 48
50-48=2

Like? Yes (4) | No (4)

karuna 9 years AGO

Two trains of length 100m and 160m respectively are running on parallel tracks. when running in the same direction the fastest train passes the slower train in 10.4 seconds, but when running in the opposite directions they take 4 seconds to cross each other. What is the speed of the fastest train

Like? Yes (6) | No (1)

Reply

Devendra Marghade 9 years ago

45 m/s

If speed(in m/s) of the fastest train=x and slower train=y, then
Time taken while running in same direction=(100+160)/(x-y)=10.4 or x-y=25 ---(i) and
Time taken while running in opposite direction=(100+160)/(x+y)=4 or x+y=65 ---(ii)
On solving (i) & (ii), x=45, y=20

Like? Yes (10) | No

mohit 9 years ago

x+y=260/10.4
x-y=260/4
x=45,y=20

Like? Yes (4) | No (1)

Shubham Prajapati 9 years AGO

There are 600 people to be seated, but there are 10 benches less. If two more people are asked to seat on each bench, then everybody is accomodated. How many benches were there?

Like? Yes (3) | No (1)

Reply

Onlinepsa.in 9 years ago

There are 50 benches.

600 = (b+10) * r [Where b= benches; r= number of people on every benche]
600 = b * (r+2)

Solving the above two you will get b = 5r. This on substituting in any one of the equation you would get a quadratic equation.
r^2 + 2r -120 = 0

r= 10 is the valid value; also b= 50. Hope you could work this out!

Thanks,
onlinepsa.in

Like? Yes (7) | No

puviyarasi 6 years ago

no of benches=n
no of people per bench=x
nx=600
but there are 10 benches less
two more people are asked to seat on each bench
hence(n-10)(x+2)=600
nx=600 -----------1
(n-10)(x+2)=600--------2
after solving 1 and 2
we get x=10, -12
no of persons cannot be negative
so x=10
then we get n as 60
there are 10 benches less
60-10=50
totally 50 benches are there

Like? Yes (2) | No

Debapratim Mishra 9 years AGO

find the number of value of x where (2x+9)^2/(x+3) value is integer
option a)2 b)4 c)6 4)infinity
submit the answer with process

Like? Yes (21) | No (3)

Reply

bharathi adabala 9 years AGO

A machine types 8469 words per minute and it starts at 4.53 AM another machine takes 16640 words per minute starts at 4.58 AM, what is the time by which the words typed the machine are equal?

Like? Yes (26) | No (1)

Reply

Sanu Panji 10 years AGO

I have some question from geometry and logical which includes figure like circle, squre, cone , box etc. But I can not include these with my question. What to do?

Like? Yes (14) | No (5)

Reply

Rajat Jain 10 years AGO

m4maths is a perfect site for preparing written exam but now this site should focus to technical interview question for all stream so this site can be used to prepare technical interview as well

Like? Yes (9) | No (3)

Reply

PAWAN KUMAR 10 years AGO

Dear admin, i want to say that all the unsolved problems/puzzles of this site should come under one heading so that anyone interested could solve it without going in the list company-wise.

Like? Yes (6) | No (3)

Reply

Mani Sara 10 years AGO

please provide online test menu same as the tcs,infosys,etc test for same as result,discussion board,math tricks,etc

Like? Yes (10) | No (3)

Reply

Pages - 149

First 1 2 3 4 5 6 7 8 9 10 Next Last

Comment Per Page 50 100

Dimple

India

Punjab

Time: 00:01:33

Points

Maths Quotes

The only world in this universe is 'MATHEMATICS'.

Kiran B. Mali

Mathematics is the QUEEN of all subject

Rupam

Placed User Comments

M4Math helped me a lot.

Vipul Chavan 4 years ago

Thanks m4 maths for helping to get placed in several companies.
I must recommend this website for placement preparations.

yash mittal 5 years ago

If 2 ^6-4=48 and 2 ^8-5=224 then 2 ^10-6 = A. 360 B.720 C.880 d.960 Please Help !

Suggestion Board Post your query related to m4maths

Other Recommended suggestion

Sponsored Links

Challenger of the Day

Maths Quotes

Placed User Comments

Site Links

Useful Info

Placement papers