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Government exams / SSC CGL foundationsPercentagesUnderstand percent as a rate per hundred, convert between forms, and solve everyday aptitude questions.Not started8 min Government exams / SSC CGL foundationsRatio and proportionCompare quantities with ratios and use equivalent ratios to find unknown values.Not started7 min Competitive exams / Physics foundationsNewton’s second lawConnect the net force on an object to its mass and acceleration, and reason about units.Not started8 min Competitive exams / Physics foundationsSpeed and accelerationDistinguish speed from velocity and calculate average acceleration from a change in velocity.Not started7 min Technology & skills / JavaScript fundamentalsVariables and valuesStore values with const and let, and choose a declaration based on whether reassignment is needed.Not started7 min Technology & skills / JavaScript fundamentalsFunctionsGroup reusable steps into functions, pass information with parameters and return a result.Not started8 min