What number should replace the question mark?

Check your answer:-

all the rows sum is 15

first row => 9 + 1 + 5 => 15

second row => 4 + 8 + 3 => 15

third row => 2 + ? + 7 => 15 => ? = 15 – 7 -2 => 6

Five Clues

**7 2 5**: 1 number is correct and placed in the wrong spot**3 1 7**: 2 numbers are correct and placed in the wrong spot**7 9 3**: 1 number is correct and placed in the proper spot**8 4 9**: nothing is correct.**8 9 1**: 1 number is correct and placed in the wrong spot.

Check your answer:-

from clue 3 and 4 -> 1 number can be 7 OR 3 (since 9 is not correct). Now if 7 was correct and placed in proper spot, it conflicts with Clue 1, thus 7 can’t be the correct number and the correct number is 3 and placed at proper spot (which is 3rd spot).

Now from 2nd clue -> two numbers are correct, one is 3 and other one should be 1 (as we know 7 can’t be correct number), since 1 is placed at wrong spot, correct spot for 1 should be first (since 3rd spot is for 3).

Again from Clue 1: 1 number is correct and placed at wrong spot. we are looking for a number at 2nd spot, it should be 5 (as 7 is not in picture and it can’t be 2 since it is placed at 2nd spot), 5 is placed at wrong spot, its correct spot should be 2nd, since we already know 1st and 3rd spot numbers.

Thus the PIN is 153.

If

2×3=15

2×5=20

2×7=30

2×11=?

**What will be the value Burger + FrenchFries x ColdDrink ?**

Check your answer:-

If you see there are 3 variables and 3 equations, we can solve the equations and get the variables values and than we can find the value of fourth equation.

From the first equation we can say that ColdDrink = 10

than from the second Burger = (20 – 10)/2 = 5

and from the third equation FrenchFries= (9 – 5)/4 = 1

Thus Burger + FrenchFries * ColdDrink = 5 + 1*10 = 15

here as per BODMAS 5 + 1*10 will be 5 + 10 = 15

What will be the next number in this series?

1 , 17 , 98 , 354 , ?

Check your answer:-

Click here to See SolutionHideIf you see the difference between the numbers

16, 91, 256

2^4, 3^4, 4^4

next difference should be 5^4 i.s. 625, thus the next number should be 354+625 => 979

-1¹²¹ -1¹²² -1¹²³ -1¹²^⁴ =?

Check your answer:-

Click here to See Solution
-1^n is 1 (if n is even) OR -1 (in n is odd)

but in this equation power is on 1 not -1

-1¹²¹-1¹²² -1¹²³-1¹²^⁴ = -1-1-1-1 = -4

What will be the next number in this series?

11,15,19,18,26,21,32, 24,37,____

Check your answer:-

**Next number**

Answer With ExplanationHide

there are two series in this puzzle,

First is 11,19,26,32,37 & second is 15,18,21,24

First is 11,19,26,32,37 & second is 15,18,21,24

first series is AP with a decreasing difference

11 -> 19 => 8

19 -> 26 => 7

26 -> 32 => 6

32 -> 37 => 5

thus next number should be 37 + 4 => 41

second series is AP with a difference of 3

15, 18, 21, 24 => next number should be 27

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