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दोन विटो बांदप्यांक वण्टीखातीर अनुक्रमान 14 आनी 21 दीस जाय पडटात. एकठांय काम करप तांकां जाय

A8.4 दीस
B8 दीस
C7 दीस
D9 दीस
Answer & Solution
Correct answer: A. 8.4 दीस
1/14 + 1/21 = 5/42 दर दिसा, देखून वण्टीक 42/5 = 8.4 दीस लागतात.
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