Question

*In a two-digit number, the digit in the unit's place is 5 more than the digit in the ten's place. If the sum of the digits is 9, what will be three times the ten's digit?*

1️⃣ 72
2️⃣ 27
3️⃣ 6
4️⃣ 21​

Answer 1

Answer:

4️⃣ 21​

Step-by-step explanation:

let number at unit place and tens place be x and y respectively

According to question

x-y=5     eq i

x+y=9 eq ii

adding equation i and ii we get

2x= 14

x=7 and

putting the value of x in eq ii

y=2

three times the ten's digit=>  3x

=>  3×7 =21

Answer 2

Answer:

please mark me brainlist