In a school of 214 students 134 takes tea, 134 takes coffee. Then how many takes only tea or coffee
A) 170
B) 180
C) 54
D) 160
1 Answers
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A 100 mark examination was administered to a class of 50 students. Despite only integer marks being given, the everge score of the class was 47.5. The
Correct Answer - D Total students =50 Average =47.5 Total marks = 2375 Now, student can obtain only integer marks. Hence for maximum students we will total marks by `48^(@)rArr[2375/48]=49`
2 Answers 1 views
A wire 214 cm long is to be divided into three segments which produce frequency in the ratio 5:6::7 . How should the length of the segments be
Correct Answer - B `l_1:l_2 : l_3 = (1)/(n_1): (1)/(n_2) : (1)/(n_3)` `=1/5:1/6:1/7` `=210/5: 210/6:210/7` =42:35:30 `L_1=(L)/("Sum of ratio") xx "ratio of length"` `=214/107xx42 = 84` `L_2 = 214/107 xx35 =...
2 Answers 2 views
Assertion : Resonance is exhibited by a circuit only if both L and C are present in the circuit. Reason : Only then the voltage across L and C cancel
Correct Answer - A The resonance phenomenon is exhibited by a circuit only if both L and C are present in the circuit. Only then the voltages across L and C...
2 Answers 1 views
90 students take Mathematics, 72 take Science in a class of 120 students.
Correct option is C) 52
2 Answers 5 views
There are 27 students take Chemistry, 22 take Physics, 7 take both then the ratio between takes only Physics and Chemistry is
Correct option is C) 4 : 3
2 Answers 1 views
In a class of 26 students, 8 takes tea but not coffee and 16 take tea then number of students who take coffee but not tea is
Correct option is A) 10
2 Answers 1 views
Make a group of students. Observe living organisms in your school/college campus and try to write their characters with respect to habit,
The common living organisms observed near school/college are: 1. Plants Habit: Herb, shrub, tree, etc. Habitat: Terrestrial or aquatic Mode of nutrition: Autotrophic Growth: Indeterminate Types of reproduction: Vegetative, asexual and sexual reproduction. 2. Animal e.g. dog,...
2 Answers 1 views
If 15 cups of tea and 17 cups of coffee together cost Rs. 241 and 25 cups of tea and 13 cups of coffee together cost Rs. 279.
Correct option is A) Rs. 7and Rs. 8
2 Answers 1 views
The total number of `alphaandbeta` particles emitted in the nuclear reaction `""_(92)^(238)Uto""_(82)^(214)Pb` is
Correct Answer - C `""_(92)^(238)Uto""_(82)^(214)Pb+6""_(2)^(4)He+2_(-1e)^(0)`
2 Answers 1 views
Which of the above-mentioned statements/s is/are TRUE? A. only 1 B. only 2 C. only 3 and 4 D. only 1, 2 and 4
D. only 1, 2 and 4
2 Answers 1 views