Exponent and power ll class 8 Maths __find?? #shorts #youtubeshorts #exponentandpower

In a Std. X class, out of 40 students, 10 students use spectacles, 2 students have positive power and 8 students have negative power and 8 students have negative power of lenses in their spectacles . What does the positive power indicate ?

In a Std. X class, out of 40 students, 10 students use spectacles, 2 students have positive power and 8 students have negative power and 8 students have negative power of lenses in their spectacles . What does the negative power indicate ?

In a class of 50 students, each student passed Maths or English. If 10 students passed both Maths and English, and 30 students passed Maths, the find the number of students who passed English.

A step down transformer converts transmission line voltage from 2200 V to 220 V. Primary coil is having 5000 turns. Efficiency of transformer is 90% and output power is 8 kW. Evaluate number of turns in secondary coil and input power.

The ages of the students of a class form an A.P. whose common difference is 4 months. If the youngest student is 8 years old and the sum of the ages of all the students of the class is 168 years, find the number of students in the class.

In a class of 50 students ,each student passed Maths of English ,If 10 students passed Maths ,then find the number of students who passed English