# Jambmaths

Maths Question | |
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Question 41 |
The grades of 36 students in a class test are as shown in the pie chart above. How many students have excellent? |

Question 42 |
The bar chart above shows the distribution of marks in a class test. If the pass mark is 5, what percentage of the students failed the test? |

Question 43 |
The mean of seven numbers is 96. If an eight number is added, the mean becomes 112. Find the eighth number. |

Question 44 |
Find the median of 2, 3, 7, 3, 4, 5, 8, 9, 9, 4, 5,3, 4, 2, 4 and 5 |

Question 45 |
Find the range of 4, 9, 6, 3, 2, 8, 10 and 11 |

Question 46 |
46 Find the standard deviation of 2, 3, 8, 10 and 12 |

Question 47 |
Evaluate $^{n+1}{{C}_{n-2}}$ if |

Question 48 |
In how many ways can the letters of the word |

Question 49 |
The probability that a student passes a physics test$\frac{2}{3}$. If he takes three physics test, what is the probability that he passes two of the tests? |

Question 50 |
The probabilities that a man and his wife live for 80 years are $\tfrac{2}{3}$and $\tfrac{3}{5}$respectively. Find the probability that at least one of them will live up to 80 years |