Question

A number consists of two digits whose sum is 9. If 27 is added to the number, its digits are interchanged. Which of the given steps is CORRECT to find the number? Step 1 :Let the unit’s digit be x Step 2 :Then, ten’s digit = (9 – x) ∴ Number = 10 × (9 – x) + x ⇒ 90 – 10x + x = (90 – 9x) Step 3 :Adding 27 to the number 90 – 9x, we get 117 – 9x Step 4 :Number with digits interchanged is 10x + (9 – x) = 9x + 9 Step 5 :117 – 9x = 9x + 9 Step 6 :Therefore unit’s digit = 6 and ten’s digit = 3 Step 7 :Hence the number = 36.

Answer 1

Step-by-step explanation:

A number consists of two digits whose sum is 9. If 27 is added to the number, its digits are interchanged. Which of the given steps is CORRECT to find the number? Step 1 :Let the unit’s digit be x Step 2 :Then, ten’s digit = (9 – x) ∴ Number = 10 × (9 – x) + x ⇒ 90 – 10x + x = (90 – 9x) Step 3 :Adding 27 to the number 90 – 9x, we get 117 – 9x Step 4 :Number with digits interchanged is 10x + (9 – x) = 9x + 9 Step 5 :117 – 9x = 9x + 9 Step 6 :Therefore unit’s digit = 6 and ten’s digit = 3 Step 7 :Hence the number = 36.

Answer 2

Answer:

answer in attachment

Step-by-step explanation:

$<font colour="blue"><b><u><marquee behaviour="scroll"direction="right"=marquee scrollamount=150>□□□□□□□□□□☆☆■✷✿✷■☆☆□□□□□□□□□</marquee>$

$<font colour="blue"><b><u><marquee behaviour="scroll"direction="right"=marquee scrollamount=30>Hope it is clear to you please mark as brilliant answer </p><p></marquee>$

$<font colour="orange"><b><u><marquee behaviour="scroll"direction="left"=marquee scrollamount=130>□□□□□□□□□□☆☆■✷✿✷■☆☆□□□□□□□□□</marquee>$