M4maths Previous Puzzles

21 Jun 2017 Decode

If
26+64 = 63,
32+48 = 83 and
43+57 = 74

Then what is the value of:
68+39 = ?

OPtion

1) 57
2) 56
3) 93
4) 54
5) 53
6) 94
7) 73
8) 64
9) 84
10) None of these

Solution

26+64 = Reverse (2*6+6*4)=Reverse(12+24) = 63
32+48 = Reverse((3*2) + (4*8)) = Reverse (6+32) = 83
43+57 = Reverse (12+35) = Reverse (47) = 74
68+39 = Reverse (48+27) = Reverse (75) = 57

Correct Option: 1 Best Solution (11)

Himanshu Kesharwani   7 years AGO

2*6+6*4=36=reverse of 36 is 63
therefore 6*8+3*9=75 and reverse is 57 so answer is 57

Like? Yes (7) | No (2)  

Dr.Dipin Singh   7 years AGO

68+39=?
6*8=48
3*9=27
48+27=75.
After reversing digits of 75, we get 57.

Like? Yes (3) | No   

Mukund Manohar   7 years AGO

26+64 = (2*6) + (6*4) = 12 + 24 = 36 = 63 (Digits are reversed)
32+48 = (3*2) + (4*8) = 6 + 32 = 38 = 83 (Digits are reversed)
Similarly,
68+39 = (6*8) + (3*9) = 48 + 27 = 75= 57 (Digits are reversed)

Like? Yes | No   

Poulami Banik   7 years AGO

It's an + bm = d
(a*n) + (b*m)=c
d= interchange once and tens place digit of c.

Like? Yes (1) | No (1)  

abhishek   7 years AGO

first multiple both digits of given number for addition (i.e.)
6*8 = 48
3*9 = 27
then add both result and reverse them (i.e.)
48+27=75 then reverse is 57
option 1)

Like? Yes (1) | No (1)  

g lokesh   7 years AGO

multiply the numbers and add both...then reverse the sum
1)26+64=63
2*6+6*4=12+24=36
reverse the digits of 36 is 63

2)32+48=83
3*2+4*8=12+32=38
reverse of 38 is 83
in the same way 68+39
6*8+3*9=27+48=75
reverse of 75 is 57

Like? Yes (1) | No (1)  

SAYAN CHATTERJEE   7 years AGO

Formula is reverse of (product of the digits of the first no. and second number)
26+63= reverse of (6*2+6*4)= reverse of 36=63
32+48=reverse of (3*2+4*8)= reverse of 38= 38

answer is 68+39= reverse of (6*8+3*9)= reverse of 75 = 57
Option 1.

Like? Yes | No (1)  

Mayur Shinde   7 years AGO

2*6+6*4=36 =63
3*2+4*8=38=83
4*3+5*7=47=74

so

6*8+3*9=75=57

Like? Yes | No (1)  

himanshu   7 years AGO

2*6+6*4=36,its reverse is 63.
3*2+4*8=38.its reverse is 83.
4*3+5*7=47,its reverse is 74
hence answer is
6*8+3*9=75,its reverse is 57
ans=57

Like? Yes | No (1)  

C. B. HARITHA   7 years AGO

6*8=48
3*9=27
So,
48+27=75
Now reverse the value and write,
Now the ans is 57

Like? Yes (1) | No (2)  

palak Jain   7 years AGO

26+64.....2*6+6*4=3663
32+48......3*2+4*8=3883
43+57......4*3+5*7=4774
So,68+39....6*8+3*9=7557

Like? Yes | No (2)