Math, asked by prashantmallick, 11 months ago

find the correct result
1+4=5
2+5=12
3+6=21
5+8=?

Answers

Answered by kashish4140

correct answer is 45
because 4 is multiplied by 1 and after it plus 1

angel3415: how?

kashish4140: plzz mark it as brainliest

Answered by barsha01

1+4=5 [(4×1)+1]
2+5=12 [(5×2)+2]
3+6=21 [(6×3)+3]
5+8=45 [(8×5)+5]

Hope it helps...

angel3415: but how?

kashish4140: firstly I multiple 4by 1 is 4 and after I add 1 in 4 apply this formula

kashish4140: kk

angel3415: how can we know this method is use for this?

barsha01: first, both nos. will be multiplied. then the 1st no. will be added to their product..... such as in 1+4.... here we multiplied 1 with 4 then added 1 to it... so the sum came 5

angel3415: 1+4= 5... 2+5=7+5=12

angel3415: ok thank you both.. i was trying like this

kashish4140: no worry

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find the correct result1+4=52+5=123+6=215+8=?

Answers

find the correct result
1+4=5
2+5=12
3+6=21
5+8=?