In Shreya's opinion, her weight is greater than 65 kg but less than 72 kg. Her brother does not agree with Shreya and he thinks that Shreya's weight is greater than 60 kg but less than 70 kg. Her mother's view is that her weight cannot be greater than 68 kg. If all are them are correct in their estimation, what is the average of different probable weights of Shreya?

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Solution

The correct option is B
67

Let Shreya's weight be X kg.

According to Shreya, 65 < X < 72

According to Shreya's brother, 60 < X < 70

According to Shreya's mother, X $\leq$ 68

So, possible weights are 66, 67 and 68.

$∴$ Average of different probable weights = 67 kg

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Q. Noora claims that her weight is greater than 55 Kg but less than 62 Kg. Her friend, Sona, does not agree with her and says that Noora’s weight is greater than 50 Kg, but less than 60 Kg. However, her mother’s view is that her weight cannot be greater than 58 Kg. If all 3 of them are correct, what could be the average of all the possible integral values of the weight of Noora?

Q. नूरा बताती है कि उसका वजन 55 किलोग्राम से अधिक है, लेकिन 62 किलोग्राम से कम है। उसकी दोस्त सोना उससे सहमत नहीं है और कहती है कि नूरा का वजन 50 किलोग्राम से अधिक है, लेकिन 60 किलोग्राम से कम है। हालाँकि, उसकी माँ का मानना है कि उसका वजन 58 किलोग्राम से अधिक नहीं हो सकता है। यदि इन तीनों की बातें सही हैं, तो नूरा के वजन के सभी संभावित मूल्यों का औसत क्या हो सकता है ?

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The correct option is B 67 Let Shreya's weight be X kg. According to Shreya, 65 < X < 72 According to Shreya's brother, 60 < X < 70 According to Shreya's mother, X ≤ 68 So, possible weights are 66, 67 and 68. ∴ Average of different probable weights = 67 kg

The correct option is B
67

Let Shreya's weight be X kg.

According to Shreya, 65 < X < 72

According to Shreya's brother, 60 < X < 70

According to Shreya's mother, X $\leq$ 68

So, possible weights are 66, 67 and 68.

$∴$ Average of different probable weights = 67 kg