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Fill in the blak -Education should teach all to ....

Fill in the blak -Education should teach all to .... Correct Answer oil your own machine

Oil your own machine একটি Proverb এর অর্থ হলো – আপন চরকায় তেল দাও। সুতরাং সঠিক উত্তর অপশন (খ) ।

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There are 16 teachers who can teach Thermodynamics (TD), 11 who can teach Electrical Sciences (ES), and 5 who can teach both TD and Engineering Mechanics (EM). There are a total of 40 teachers. 6 cannot teach any of the three subjects, i.e. EM, ES or TD. 6 can teach only ES. 4 can teach all three subjects, i.e. EM, ES and TD. 4 can teach ES and TD. How many can teach both ES and EM but not TD?
In a group of 33 teachers in a high school, 7 teachers teach chemistry, 19 teachers teach physics and 18 teachers teach mathematics. Also, 3 teachers teach both chemistry and physics, 8 teachers teach both physics and mathematics and none of teachers teach both chemistry and mathematics. Then, find the number of teachers who teach only chemistry?
A, B, C, and D are high school teachers who teach four subjects. A and B teach sociology. B and C teach mathematics and sociology. A teach the same subjects as those who teach D. D teaches two subjects that C does not teach. Who teaches three subjects?
For submitting tax returns, all resident males with annual income below Rs 10 lakh should fill up Form P and all resident females with income below Rs 8 lakh should fill up Form Q. All people with incomes above Rs 10 lakh should fill up Form R, except non residents with income above Rs 15 lakhs, who should fill up Form S. All others should fill Form T. An example of a person who should fill Form T is
Experienced and skilled extension education workers can teach people by creating situations like
1. can provide opportunity to people.
2. can bring changes in mind of people by having conversation.
3. can teach by scolding people.
4. can teach by bribing people.
5. can teach according to needs of the persons.
Study the following pie chart that shows the percentage-wise distribution of teachers who teach six different subjects, and answer the question given below. Total number of teachers = 1600 If the number of teachers who teach Accountancy is increased by 25% and the number of teachers who teach Economics is decreased by 25%, then the total number of teachers who teach Accountancy and Economics together is:
Read the information carefully and answer the question based on it. The seven lecturers  P, Q, R, S, T, U and V, teach seven subjects viz. Physics, Chemistry, Biology, English, Mathematics, Economics and Geography. These seven lecturers teach different subjects but not necessarily in the same order. Every teacher teaches only one day from Monday to Sunday but not necessarily in the same order. R teaches Biology on Friday. One who teaches Physics immediate on previous day of which, Q teaches Mathematics. V teaches on Sunday but not Chemistry or English. U teaches on which day, immediate on previous day of which S teaches Economics, P teaches Geography on Tuesday. T does not teach English. Which subject does 'T’ teach ? 
In a school there are 20 teachers who teach mathematics or physics, of there, 12 teach mathematics and 4 teach both physics and mathematics. How many teach only physics ?
In a school, there are five teachers A, B, C, D and E. A and B teach Hindi and English. C and B teach English and Geography. D and A teach Mathematics and Hindi. E and B teach History and French. Who teaches maximum number of subjects?
In a school there are 20 teachers who teach mathematics or physics. Of these, 12 teach mathematics and 4 teach both physics and mathematics. How many teach only physics?