In an IQ test, Ram (11-year-old) passed all tests of 6-year-old and half tests of 7-year-old and none of 8 years ones. His mental age can be calculated as? a) 6 years + 6 months + 0 = 78 months b) 7...

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Extracted text: In an IQ test, Ram (11-year-old) passed all tests of 6-year-old and half tests of 7-year-old and none of 8 years ones. His mental age can be calculated as? a) 6 years + 6 months + 0 = 78 months b) 7 years + 6 months + 0 = 90 months c) 5 years + 6 months + 0 = 66 months d) 6 years + 7 months + 0 = 79 months