### Which number should replace the question mark?

Check your answer:-

A*B – (B-A) – 1

for first line 4*6 – (6-4) -1 => 24 – 2 -1 => 21

you can see the same for all other lines, thus for the last one

4*4 – (4-4) – 1 => 15

In this category we have mathematical puzzles which requires some kind of math to solve, like: algebra, equations, permutation and combinations.

Some of these maths puzzles are very simple and some are very hard, check these out, we are sure you will like it for sure.

Solve this one in a minute

Check your answers:-

Box 1 (top left)

Box 2 (top right)

Box 3 (bottom left)

Box 4 (top right)

Click here to See SolutionHideLet’s quickly write the equations

B1 + B2 = 14

B1 + B3 = 15

B2 + B4 = 16

B3 – B4 = 10

by adding all equations

B1 + B2 + B3 = (14 + 15 + 16 + 10 )/2 = 55/2 = 27.5

B3 = 27.5 – (B1 + B2) = 27.5 – 14 = 13.5 => **B3 = 13.5**

B2 = 27.5 – (B1 +B3) = 27.5 – 15 = 12.5 => **B2 = 12.5**

B1 = 14 – B2 = 14 – 12.5 = 1.5 => **B1 = 1.5**

B4 = B3 – 10 = 13.5 – 10 = 3.5 =>** B4 = 3.5**

Let’s see if you can solve this one.

What is the heigh of the table in cm?

Check your answer:-

let’s assume height of the table is T and cat is C and R of tortoise.

let’s write down the equations

T + C – R = 170cm

T + R – C = 130cm

add both the equations

2T + C – R + R -C = 170 + 130 cm

2T = 300cm

T = 150cm

B + ( B/4 ) * 7 + [( B*2 ) – ( B-2 ) ( B-2 )] + 5 – ( B*B ) = B

**What is the value of B?**

Puzzle by : Pranav Tambat

Check your answer:-

Lets say B is half full blue glass, Y is half full yellow glass and R is half full red glass, then

2B + B + 2B = 15 => 5B = 15 => B = 3

2Y – Y + 2B = 10 => Y + 2*3 = 10 => Y = 4

2R + 2R – R = 6 => 3R = 6 => R = 2

Now

B + (B+R)*Y = 3 + (3+2)*4 => 3 + 20 => 23

somewhere in the wonder land there are sequence of 7 Temples separated by 7 rivers,

Sequence is Temple, River, Temple, River…………

A man has to put equal number of flowers on every temple but the catch is as he crossed the river, remaining flowers will be doubled (2 times)

how many flowers should a man carry with him before entering into first temple so that till last river he has left with nothing?

Assume he took 5 flowers,

on first temple he drop 2, remaining is 3 as he crossed the river it will become 6, he put same number of flowers (i.e 2 flowers) 6-2=4 which again become twice in second river means 8…

I tried so many ways but cant get the answer?

Hope someone else come up with some good logical based answer

Let me see how clever everyone is…

Solve the riddle :

Think properly and then answer

Check your answer:-

one 9 in every 10s (like 9, 19, 29, etc) => 10

extra 10 9s in 90 – 99 => 10

thus total 20

extra 10 9s in 90 – 99 => 10

thus total 20

Click here to See SolutionHide

(2+(2/2))^2=9

- 1
- 2
- 3
- …
- 6
- Next Page »