The Mathematical Challenge By Ali - Admin on November 8, 2017 in ar, Riddles Dear Friends, Can you find out the number in “?”, If you can solve it in less than 3 mins then you are a Genius 🙂 riddles
the required number is 91. I did it in 45 sec.
91
91
91
91 calculated in 15 sec 🙂
91
91 yaar!!
its 91 i calculated in 2 min
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91
4×3= 12 12+3= 15
5×4= 20 20+4+4= 28
6×5= 30 30+5+5+5= 45
7×6= 42 42+6+6+6+6= 66
8×7= 56 56+7+7+7+7+7= 91
Good one Dr Aftab!
Thanks For Appreciation, Madam SARA.
91
Less than 1 min.
The answer is 91
The answer is 90
91
109
Simply Add Column1 with Column2 and Multiply the Result with Column2.
91
97
91 in just 20 seconds I got it as add Column 1 and Column 2 and then multiply with column 2
91 🙂
91
it is 91
91
(3×4)+(3×1)= 15
(4×5)+(4×2)= 28
(5×6)+(5×3)= 45
(6×7)+(6×4)= 66
(7×8)+(7×5)= 91
Add Column #1 and Column #3 and subtract 1 and multiply by column#2
(2+4)-1*3=15
(3+5)-1*4=28
(4+6)-1*5=45
(5+7)-1*6=66
(6+8)-1*7=91
i had solved this just in 50 sec, correct ans is “91”
gap is 13,17,21,25 and add 25 into 66
yay…
I solved it in just 30 seconds.
the answer is 91
(7+8) times 6 then add 1
this rule applies for all .
so the rule is add the numbers in the 2nd and 3rd columns, multiply the result by the number in the 1st column, then add 1.
(7+8) (6) +1=91
91
91 in 20 sec 😉
91
28-15=13
45-28=17 it means 13+4
66-45=21 it means 17+4
so 21+4=25+66=91
91
91
91
off course 91.
13
it 67
91
91
91
Answer : 91
The answer is 91.
In the fouth column the diference betewwen the before anda after lines grows up by sum 4 in each line. So I just sum 66 + 25 = 91.
91
35 + 56 = 91
91
3*4+3*1=15
4*5+4*2=28
5*6+5*3=45
6*7+6*4=66
7*8+7*5=91
Result= 91 because:
12+(1×3)= 15
20+(2×4)= 28
30+(3×5)= 45
42+(4×6)= 66
and: 56+(5×7)= “91”
so: X+(nx(n+2))= Y
the number is 91
15+13=28
28+17=45
45+21=66
66+25=91
(2+3)*3=15
(3+4)*4=28
(4+5)*5=45
(5+6)*6=66
(6+7)*7=91