in a two digit number,the sum of the digits is equal to 9 and a product of the digits is equal to 20 . what is the number?
Answers
Answered by
0
Answer:
the no. may be 45 or 54 .
Step-by-step explanation:
we can take , a+b =9
ab= 30
after solving an quadratic equation will be formed..
hope it helps
Answered by
0
Answer:
45
Step-by-step explanation:
in the 1st case the options we have is
18,27,36,45,54,63,72,81,90
but in the 2nd case it was given that product of numbers is 20...so
4 × 5 = 20. (or) 5 × 4 = 20
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