Answer
Step-by-step explanation:
Let time be x distance be y
Put value in eq(2)
Put it in eq(1)
Answer:
option A
option A y = 9√3 is the correct answer .
In∆ PQR
cos 30 = y /18
√3/2 = y / 18
y = 9√ 3
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7(M+5)=21
or, 7M+35=21
or, 7M=21-35
or, 7M=-14
or,M=-14/7
or, M=-2
