### #1 - Coolest Maths Rebus

Can you tell us what does below rebus means?

In how many ways by using number 1 to 7 and + operator, you can make the number as 100?

2 Ways

Explanation:

1 + 2 + 34 + 56 + 7 = 100.

1 + 23 + 4 + 5 + 67 = 100.

Whats the output of below equation?

(10^0 + 10^1 *10^2 - 10^0)/10 = ?

Note: This belongs to quick-fire section riddles so you need to answer this really fast.

100

Can you find a four digit number based on three clues below?

Clue-1: Its first digit is of no use.

Clue-2: Its second and fourth digit is the mirror image of each other.

Clue-3: The third digit is half the second.

0848

Explanation

Clue-1: Its first digit is of no use.

The digit '0' at the start of the number is of no use.

Clue-2: Its second and fourth digit is the mirror image of each other.

The number '8' is the only digit that is the mirror image of itself.

Clue-3: The third digit is half the second.

4 is half of 8

Can you determine the height of red bar with the help of information provided in the picture below?

8m

From green bar, we can deduce that

the height of vertical bar = 2/3 of uninterrupted shadow length of the bar.

Therefore shadow of 6m of red bar indicates the height of 4m.

The remaining red bar casts a direct 1:1 vertical projection on the wall.

Therefore total length = 4m + 4m = 8m.

Can you identify the logic behind the equation below and solve the puzzle by completing the equation?

12 + 13 + 7 = 1

15 + 16 + 11= 2

17 + 18 + 16 = ?

4

Logic Used: Sum the numbers and then subtract the two digits to get the desired answer.

12 + 13 + 7 => 32 => 3 - 2 => 1

15 + 16 + 11 =>42 => 4 -2 => 2

17 + 18 + 16 = 51 => 5 -1 => 4

Can you replace each alphabet with the number (1 - 9) to make below equation correct ?

AB * C = DE - F = GH / I

39 * 1 = 45 - 6 = 78 / 2

AB - C = DE / F = GH * I can be solved as

A = 3

B = 9

C = 1

D = 4

E = 5

F = 6

G = 7

H = 8

I = 2

So below equation can be solved as:

AB - C = DE / F = GH * I

39 * 1 = 45 - 6 = 78/2

39 = 39 = 39.

Considering below equation holds

V + II - VI = 10

IV - X + VIII = 20

IV - VII + VI = 30

Then, I + II + III = ?

60

V + II - VI = 10

=> I = 10

IV - X + VIII = 20

=> II = 20

IV - VII + VI = 30

=> III = 30

I + II + III = 10 + 20 + 30

Can you replace question mark to make the below equation true ?

16 ? 14 ? 4 ? 6 = 62

16 × 14 / 4 + 6 = 62

If

20 % 5 = 24

21 % 7 = 33

42 % 6 = 67

Then;

66 % 6 = ?

1211

The number on the right side is formed as (sum of digits of the 1st number)(number1/number2)

example,

20 % 5 = 24 (2+0)(20/4)

21 % 7 = 33 (2+1)(21/7)

42 % 6 = 67 (4+2)(42/6)

Simillarly,

66 % 6 = 1211 (6+6)(66/6)