BA × B3 = 57A find A and B . SOLVE IT .. AND PLZ DONT SPAM OTHERWISE YOUR ANSWER WILL BE REPORTED . correct answer will surely be marked as brainliest and i will follow that person
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Answer:
A=5 and B=2
Step-by-step explanation:
BA×B3=57A
as B is in 10
′
s place
⇒(10×B+A)×(10B+3)=(57×10)+A
⇒100B
2
+10(A×B)+30B+3A=570+A
⇒100B
2
+10(A×B)+30B+2A=570
⇒2A=570−100B
2
−10(A×B)−30B
⇒10/2A as 10 divides RHS
⇒A=5
or A=0
for A=0, 100B
2
+30B=570
⇒10B
2
+3B=50+7
no B satisfies this as
3B=7
for A=5,100B
2
+80B+10=570
⇒10B
2
+8B=56
⇒5B
2
+4B=28=20+8
⇒B=2
∴B=2,A=5
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